Infinite Wonder
Rainbow Cube Building Blocks
Rainbow Cube Building Blocks
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🌈Rainbow Cube Building Block Set
Beautiful, open-ended blocks for curious minds and calming, creative play.
Encourage imagination, concentration and connection with our Rainbow Building Block sets — perfect for stacking, sensory exploration and role play. With their smooth texture and soft bevelled edges, these versatile blocks are a staple for any Montessori, Waldorf or open-ended play space.
Whether your child is building towers, creating characters or watching light bounce through coloured blocks, these blocks bring play to life in gentle, engaging ways.
✨ How can I use these blocks?
- Use during light play and enjoy how the blocks reflect soft colours across the floor
- Build towers to explore balance, coordination and problem solving
- Incorporate into sensory trays or imaginative play as counters, pretend characters or small-world props
- Learn through play: colours, shapes, gravity, shadows and textures
- Take them on the go for screen-free, calming activities that offer repeated engagement
💛 Why parents & educators love them:
- Great for light table play, sensory trays or quiet corners
- Encourages focus and calm, supporting early emotional regulation
- Helps develop fine motor skills, problem solving and creativity
- Promotes open-ended play that grows with the child
- Adaptable for loose parts play, counting, colour sorting or storytelling
- Easy to clean, easy to pack, built to last
These blocks also offer indirect emotional benefits — from quiet solo play that helps little ones regulate, to shared play that builds connection and confidence.
📏 Product Details
- Choose between a set of 10 or 20 Rainbow Acrylic Cube Blocks
- Each block measures 2.5cm x 2.5cm x 2.5cm
- Comes in a cotton drawstring pouch for easy storage or on-the-go play
- Designed to pair perfectly with our Wooden Window Houses or mix and match with our Rainbow Rectangle Building Block sets (sold separately)
📦 Materials & Care
- Made from high-quality shatterproof acrylic
- Smooth, tactile and safe for small hands
- Wipe clean with a damp cloth or warm soapy water
- Please note: acrylic may develop small scratches over time with regular use
🔒 Safety Info
- UKCA certified meaning it is safe for little hands and made of non-toxic materials, meeting all UK Toy Safety standards
- Suitable for children aged 3 years+ due to small parts
- Adult supervision recommended during play
📮 Shipping
- Shipped via 48 hour tracked delivery as standard or upgrade at checkout to 24 hour tracked delivery. For both options we aim to dispatch your item within 1-2 days of receipt.
💛 Why choose Infinite Wonder?
We’re a UK-based, mum-founded brand creating beautiful, open-ended toys that invite connection, curiosity and calm — with a growing focus on emotional learning through play.
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A beautiful set of blocks that offer so many different play opportunities. Really good quality and a great price!
We bought both the 10 & 20 set, these are just so lovely to play with.
These seem so durable and come with the perfect little storage pouch (plus care instructions which i found super helpful!). My little girl is loving playing with these by grouping colours and building things as well as sorting them into the house windows
My daughter absolutely loves these blocks! I’ve watched her count them, stack them, stare through them & group them together over and over. A fantastic idea on their own & lovely when added to the house play set.
Very glad I purchased these.
Purchased these for my little girl who is just starting to enjoy building towers and fine tuning her pincer grasp. Since receiving she has navigated more to these than any of our other building blocks and I think that is because of the beautiful bright colours. These are going to be a great colourful addition to our open ended toy collection!