Building Block Set: Rainbow Stacker
The Wooden Rainbow Stacker is a Montessori-inspired open-ended building set made from smooth, non-toxic painted wood. Available in a range of shapes, arched rainbows, semi-circles, and strips these beautiful pieces can be stacked, balanced, nested, and arranged in endless combinations. There's no right or wrong way to play, and that's exactly the point.
What's included:
Choose the set that suits your child and your space:
- 6pc Rainbow Six graduated arches (40 × 10 × 6 cm). A wonderful starting set for younger toddlers.
- 12pc Rainbow Twelve arches in a full spectrum of colours (35 × 16 cm). Maximum building and sorting potential.
- 11pc Strips Flat rectangular pieces ideal for roadways, fences, and balance play (37 × 6 cm).
- 11pc Semi-Circles Curved half-arch pieces that add a whole new dimension to nesting and construction (37 × 10 cm).
- Non-toxic water based colour stain
All pieces are painted with non-toxic paint and finished to a smooth, child-safe standard.
What our OT says:
This is one of the toys I return to again and again and for good reason. The rainbow stacker sits at that wonderful intersection of beautiful, durable, and therapeutically rich.
From an OT perspective, every time a child picks up a piece, positions it, and decides where to place it, they are doing real developmental work. The graded sizing of the arches introduces early mathematical concepts like size sequencing, spatial reasoning, and visual discrimination all without a single worksheet in sight. Balancing pieces on top of one another demands bilateral hand use, postural stability, and sustained concentration; skills that underpin everything from handwriting to self-care.
The smooth wooden finish provides gentle tactile feedback, and the vibrant colours support visual attention and colour recognition. For children with sensory processing differences, this kind of open-ended, visually stimulating, hands-on play can be incredibly regulating it invites focus without pressure, and effort without frustration.
Because there's no defined outcome, children self-direct the challenge level, which is one of the hallmarks of great Montessori design. A toddler builds a simple arch; a five-year-old engineers a tunnel network. Both are winning.
Other ways to play:
The rainbow stacker grows with your child here are just some of the ways it comes alive beyond basic stacking:
- Tunnels & bridges: Invert the arches to create roads, tunnels, and passages for small animals or cars
- Colour sorting & matching: Group pieces by colour or gradient as an early maths activity
- Balance challenges: Stack pieces as high as possible and see who can build the tallest tower without toppling
- Storytelling scenes: Use the pieces as hills, caves, or rainbows in small-world imaginative play
- Pattern making: Lay pieces flat and create repeating colour or shape patterns (great for pre-maths skills)
- Tracing & art: Use the curves as stencils for art activities
- Light table play: Place on a light table or window ledge for stunning colour-mixing and shadow exploration
Let customers speak for us
All three of my girls are loving this simple addition to the outside play area. Seems quite strong as I absolutely launch them. Love the fact that the height is adjustable. Great product - Happy.
We absolutely loved the gorgeous gift that we received of the cutest black & white flower bouquet with Afr & Eng gift tags for Mother's Day of 2026!
It was simply lovely and só spot on!
Thank you Tiny Tree Toys! ⚘️
I absolutely love this puzzle, and have purched multiple ones as gifts. It is well crafted, and the wood is neatly rounded off. I'll be honest I've never played the game guidlines included, and rather use it as a catalyst in my creative processes. I love the fact that there are no rules to this, and the opportunity to use it as an expressive tool. My tiny human loves it too, and can play endlessly with captivated imagination.
Absolutely love the wooden stacking toys, I am trying to move away from plastic and purchase better quality educational toys for my baby and this is the perfect shop for that!
Great addition to our light-box and there are more than one of each letter in this set. This gives you more word building opportunities.
What a great fine motor beading set. They give nice resistance when children push them together and pull them apart, which helps strengthen the fingers and improve hand control.
My nearly-4-year old daughter loves playing 'doctor' with this doll. She took it to school show and tell and it was a hit!
Another great buy from tiny tree toys <3
The Humpty Dumpty wall game is a firm favourite with our toddlers. It’s a simple cause-and-effect activity that immediately grabs attention and keeps little ones engaged. While it’s a plastic game and not the most durable piece in the room, the value for money is excellent. The amount of fun, repetition, and learning we’ve had from it makes it well worth it for early play and therapy sessions.
The rope ladder brings instant adventure into the OT space. It invites pretend play while quietly working on grip strength, shoulder stability, core control, and bilateral coordination. Climbing rung by rung challenges motor planning and body awareness, while the imaginative element keeps children motivated and engaged. It’s a brilliant way to blend functional movement, confidence-building, and play in a way that feels exciting rather than therapeutic.
The trapeze swing is always a hit in the OT room. It builds strong arms, shoulders, and core while giving the kind of movement input kids love. Swinging, hanging, and climbing all support coordination, body awareness, and regulation without it ever feeling like hard work. Big movement, big smiles, and loads of therapeutic value packed into one piece of equipment.
I was so excited to see something new in educational games. This can be used in many different ways. Perhaps it would be useful to list the different ways it can be used from simple to complex.
We are using this in therapy and I think the size and challenge is perfect for many of the kids we work with. One suggestion would be to add an extra one of each colour to make it more challenging - so if they get to the last one, it’s a bigger challenge to choose the correct colour when copying a pattern. Also in case any get lost. But overall, good quality and a lovely game
Well made and cute. Exactly what you expect
