A practical, evidence-led guide to choosing toys that support two babies growing, exploring, and learning side by side.
The single most useful piece of advice for parents buying toys for one-year-old twins is this: prioritise depth over breadth. Two or three beautifully made, open-ended objects will serve your children far better than a dozen novelty items competing for attention in the same small room. At twelve months, both babies are deep in what Piaget called the sensorimotor stage, learning through touching, mouthing, banging, and dropping rather than through anything a toy's packaging describes as educational. Simple, sturdy, non-electronic toys that reward repeated handling, stacking toys, shape sorters, tactile wooden blocks, give each child something genuinely absorbing to do, which is the quietest possible gift in a twin household.
For twins specifically, the practical framework breaks down neatly: buy two of anything that rewards solitary, hands-on exploration (stacking rings, push-along animals, shape sorters), and buy one of anything larger that naturally invites side-by-side or observational play, a skittles set, a nesting basket, a simple ball run. This single distinction will save you money, reduce conflict, and keep your floor space manageable. Everything that follows in this guide builds outward from those two principles.
Buying for twins concentrates every ordinary pressure of first-birthday toy shopping and then doubles it. Two babies reaching the same gross motor milestones, pulling to stand, cruising furniture, taking first steps, at roughly the same moment means doubled noise, doubled movement, and doubled sensory input within one shared space. The temptation to reach for novelty, something new and briefly distracting, is understandable and almost universal among parents of twins, but novelty toys tend to be single-use items that lose their appeal within days and add to the clutter.
The developmental picture at twelve months is rich. Alison Gopnik's work on infant curiosity describes babies of this age as intensely hypothesis-driven, testing the physical world with every object they handle. Piaget's sensorimotor stage, which runs from birth to roughly two years, tells us that cause-and-effect understanding is the dominant cognitive task: what happens when I drop this, push this, stack this, or put this inside that? Toys that answer those questions reliably and repeatedly, without batteries or screens, are the ones that hold attention longest. In a twin environment, where the room is already busy and stimulating simply by virtue of having two babies in it, simplicity in toy design is not a compromise. It is a considered advantage.
True cooperative play, the kind where two children negotiate roles and pursue a shared goal, does not emerge reliably until the third year. At twelve months, twins will play alongside one another rather than with one another, and this is entirely typical development. Pellegrini's careful mapping of social play stages places this age firmly in solitary and onlooker play, with parallel play beginning to appear but not yet dominant. Understanding this matters enormously for toy selection because it means friction between twins is rarely about personality. It is about developmental stage.
Research note: the PLAY system and siblings
Jaak Panksepp's work on the brain's primary PLAY system identifies exploratory play as a deeply rooted biological drive in young mammals. In twins, these drives run simultaneously in close proximity. Choosing toys that allow each child to satisfy their own exploratory drive independently, without requiring the other to cooperate, reduces conflict and supports the sustained attention that builds early executive function.
There is a further subtlety worth noting. When one twin watches the other handling an identical object, something genuinely educational is happening. Vygotsky's concept of the zone of proximal development applies not only to adult-child interaction but to peer observation: a baby who watches a sibling successfully nest a cup inside a larger one is primed to attempt the same action moments later. Buying two of the same toy does not produce twice the boredom. It produces two independent explorations that each child can observe and learn from simultaneously.
Research by Dauch and colleagues found that toddlers who played with fewer toys engaged in longer, more focused, and more creative play than those surrounded by many. In a twin setting, where the environment is already rich with social stimulation simply because another person is always present, the case for a smaller selection of high-quality objects is even stronger. Electronic toys that beep, flash, and narrate add a third layer of sensory input to a room that already contains two curious, vocal, mobile babies. Wooden toys, by contrast, offer varied tactile feedback, warmth, weight, and grain through the hands without competing acoustically with the environment.
Hirsh-Pasek and Golinkoff's extensive work on playful learning consistently identifies open-ended objects as the most developmentally potent toy category for under-twos. A set of stacking rings can be stacked, knocked down, mouthed, rolled, and sorted by colour as language develops. A set of smooth tactile blocks can be carried, lined up, posted, and eventually used in early symbolic play. These objects grow with the child rather than expiring at a single developmental moment.
Browse Jaques of London wooden toys, made for early hands and lasting yearsThe honest answer is: it depends on the toy's relationship to the child's body. Trawick-Smith's research on toy design and child engagement highlights that the most conflict-generating toys are those that reward a single user's sustained physical contact, a shape sorter being filled, a stacking ring being built. These invite possession because the activity requires continuous use of the object. Buy two of these, without hesitation, if your budget allows.
Larger items that invite a different relationship are far more shareable at this age. A set of skittles, for example, is used in brief, turn-like bursts, knocked over, admired, reset. The natural rhythm of the activity accommodates two children even before they understand taking turns formally. A nesting basket, a simple sorting board placed on the floor between them, a ball to roll back and forth: these are objects that spatial logic makes shareable without requiring social negotiation the children are not yet developmentally ready for.
A tiered buying framework for twins
Tier one, buy two: stacking rings, shape sorters, pull-along animals, personal comfort objects. Tier two, buy one: skittles sets, large nesting toys, ball runs, push-along vehicles large enough for side-by-side use. This distinction alone can halve your spending without halving the developmental value.
In the UK post-transition period, the relevant marks are the UKCA (UK Conformity Assessed) mark for products placed on the GB market, and the CE mark which continues to apply to Northern Ireland and to goods sold across the EU. Both require compliance with EN 71, the European toy safety standard, which covers mechanical and physical properties, flammability, and chemical content. For twelve-month-olds, the most pertinent provisions concern choking hazards: any component that fits entirely within a small-parts cylinder (approximately 31mm diameter by 57mm depth) is considered a choking risk for children under three.
When two children use the same category of toy simultaneously, durability becomes a doubled concern. A toy rated for occasional use by one child may show wear significantly faster when two babies are handling equivalent objects every day. Look for splinter-free, sanded finishes on all wooden surfaces, rounded edges with no sharp transitions, non-toxic water-based or food-safe finishes, and joints that are glued and pinned rather than relying on adhesive alone. A higher upfront cost per unit, spread across two children who will use the toy for two or more years, typically represents better value than a cheaper item replaced annually. Jaques of London, established in 1795 and the world's oldest games company, has built its reputation on precisely this kind of considered manufacture.
Twin households rarely have the luxury of a dedicated playroom. More commonly, toys must coexist with adult living in a shared space, which means that volume of toys becomes a real quality-of-life issue for the whole family. Montessori's principle of the prepared environment is particularly useful here: a small number of carefully chosen objects, arranged accessibly and rotated regularly, produces a calmer, more focused child than a room crowded with options. Adele Diamond's research on executive function in toddlers reinforces this: environments that are ordered and uncluttered support the self-regulation skills that are just beginning to emerge at twelve months.
A practical rotation system, four to six toys in active use at any one time with the rest stored out of sight and rotated every two to three weeks, keeps the environment fresh without requiring more floor space or more spending. For twins, this approach has the additional benefit of reducing the total number of simultaneous objects competing for attention in one room. A curated core of perhaps eight to ten high-quality pieces, rotated in pairs, will serve two one-year-olds more richly than twenty items piled in a basket.
The most important question to ask of any toy intended for a one-year-old twin household is whether it will still be played with at eighteen months, at two years, and at three. Froebel, whose gift-based play materials shaped early childhood education for two centuries, argued that the ideal play object grows with the child, offering new challenges as new capacities emerge. A set of nesting cups that a twelve-month-old mouths and bangs becomes a sorting and counting toy at two and a prop for water and sand play at three. This kind of developmental longevity makes a higher unit cost sensible and, when multiplied across two children, genuinely economical.
For twins, coordinating a gift list with grandparents and other family members is worth the small organisational effort. Rather than receiving several versions of the same novelty toy, parents who share a clear list of curated, complementary items tend to end up with a genuinely useful collection. Traditional games and classic wooden toys make excellent gifts precisely because they are legible to older generations and genuinely valuable to children, a rare alignment that twin parents can exploit.
This is more common than many parents expect, and it is entirely within the range of typical twin development. The most practical solution is to prioritise open-ended objects with no single correct use. A set of smooth wooden blocks, for example, can be mouthed and banged by a baby at an earlier motor stage and stacked or sorted by one who is slightly ahead. Shape sorters with larger, simpler openings reward a baby who is just developing pincer grip while remaining engaging for one who has already mastered it. The key is to avoid toys with a single narrow purpose that is either too easy or too hard for one of the pair, because that toy will reliably create frustration for one child and boredom for the other.
Chewing and throwing are not incidental to play at this age. They are the play. Both are sensorimotor investigations of exactly the kind Piaget described as central to cognitive development in the first two years. A well-made wooden toy with a non-toxic finish is specifically designed to survive this kind of use, which is precisely why the upfront cost is justified. A cheaper plastic equivalent may crack under the same treatment, creating sharp edges and a replacement purchase. Across two children using equivalent toys simultaneously, the durability argument becomes even clearer. A solid wooden stacking ring set that lasts three years across two children costs considerably less per child-year of use than a cheaper toy replaced annually.
Eight pieces, rotated in pairs, will cover the main developmental territory comfortably. Aim for: two sets of stacking rings (gross and fine motor, cause-and-effect, colour awareness), one shape sorter per child or one generous shared version (spatial reasoning, problem-solving, pincer grip), a set of smooth tactile blocks used jointly (sensory exploration, early construction), and one larger shared item that invites movement, a push-along toy or a simple ball. This gives you sensory, motor, spatial, and early social development in a footprint that fits within a modest corner of a living room. Rotate half of these out every two to three weeks and the environment will feel fresh without requiring more space or spending.
Entirely normal, and more common than the identical-toy solution would suggest. At twelve months, the appeal of an object is often magnified by the fact that another person is holding it. This is not defiance or possessiveness in any meaningful sense. It is social learning, the same observational mechanism that makes watching a sibling so developmentally rich. The most effective short-term response is calm redirection rather than intervention: offer a third object or briefly engage one child in a different activity. Over time, the behaviour naturally reduces as language develops and both children become capable of very simple negotiation. Choosing toys that reward immediate, independent engagement, rather than toys that require extended setup or assembly, tends to reduce the intensity of this dynamic because each child has something genuinely absorbing to return to.
Britain's oldest toy maker. Every toy open-ended, wooden, and built for exactly the kind of play the research recommends.