Crystal Polydron CMY Set

The Crystal Polydron CMY Set is a 48-piece construction toy made up of transparent cyan, magenta, and yellow squares that connect together to build 3D shapes and models. As pieces overlap, their colours combine, giving children a hands-on, visual way to explore colour mixing while they build.

How it helps

With 48 pieces included, there is enough here for genuinely open-ended building, from simple shapes to more ambitious constructions. Because each piece clicks together by hand, building with the set naturally involves repeated fine motor movements, which can support children who benefit from hands-on, general SEND-friendly learning approaches, alongside the visual appeal of watching colours change and combine.

For schools

• Fits a wide age range. Suitable from 4 years and up, the set works across early years and primary settings.
• Supports hands-on SEND provision. The physical, repetitive act of connecting pieces gives a practical, low-pressure activity that can sit within a graduated approach to learning support.
• Durable for repeated classroom use. The pieces are dishwasher safe up to 70 degrees Celsius, and the set comes in a sturdy, reusable carton for storage between lessons.
• Practical for bulk purchase. As a 48-piece set in one box, it is straightforward to budget for and store as a shared classroom resource.

For parents and home use

• Open-ended play at home. With 48 pieces, children can build at their own pace without needing to follow a single set instruction.
• A gentle way into colour mixing. Watching cyan, magenta, and yellow combine as pieces overlap gives a simple, visual introduction to how colours work together.
• Age-appropriate from 4 years. The set is designed for children aged 4 and above, making it suitable for early building play at home.
• Easy to store and keep tidy. The sturdy, reusable carton makes it simple to pack away between play sessions.

For children with general SEND or learning differences, hands-on construction toys like this one can offer a practical, pressure-free way to build fine motor skills and visual understanding through repeated, self-directed play, rather than through a formal seated task.

Whether you are a SENCO looking for a durable, reusable classroom resource, or a parent after an open-ended toy that grows with a child's building skills, the Crystal Polydron CMY Set offers 48 pieces in one straightforward set.

• 48 transparent squares in cyan, magenta, and yellow, which combine in colour as pieces overlap.
• Suitable for children aged 4 years and above.
• Set weighs 1.3 kg in total.
• Packed dimensions of 19 x 12 x 7 cm (length x width x height).
• Made from 100% recyclable, BPA-free plastic.
• Dishwasher safe up to 70 degrees Celsius (158 degrees Fahrenheit).
• Comes packed in a sturdy, reusable carton.
• Manufacturer's own product code: 10-CMYCRYSTAL.
• Brand: Polydron.

• Genuinely open-ended building. With 48 pieces included, children are not limited to one model or a single correct outcome.
• Supports hands-on SEND-friendly learning. The repeated clicking and connecting of pieces gives a practical, low-pressure activity for children with general SEND or learning differences.
• Built to last in the classroom. Pieces are dishwasher safe up to 70 degrees Celsius and packed in a sturdy, reusable carton for repeated school use.
• Simple, visual colour learning. Cyan, magenta, and yellow pieces combine as they overlap, giving an intuitive first introduction to colour mixing.

What's in the Box

• 48 x transparent squares (cyan, magenta, and yellow)

Care and Cleaning

Pieces are dishwasher safe up to 70 degrees Celsius (158 degrees Fahrenheit).

Delivery and Returns

Standard UK delivery applies. See our Delivery and Returns page for full details.

• What is the Crystal Polydron CMY Set?
  It is a 48-piece construction toy made from transparent cyan, magenta, and yellow squares that click together to build shapes. As pieces overlap, their colours combine, giving children a hands-on way to explore colour mixing while building.
• Is the Crystal Polydron CMY Set suitable for children with SEND or learning differences?
  Yes, its hands-on, repetitive building style suits children with general SEND or learning differences who benefit from practical, visual learning. The open-ended nature of the set means there is no single correct way to use it.
• Can schools use the Crystal Polydron CMY Set as part of SEN provision?
  Yes, its durable, dishwasher-safe pieces and reusable carton make it practical for repeated use in a classroom or intervention setting. It offers a hands-on activity that can sit alongside other SEN or general learning support resources.
• Can parents use the Crystal Polydron CMY Set at home with their child?
  Yes, it is designed for open-ended building play at home from age 4 upwards. Children can build at their own pace without following a single set of instructions.
• What age is the Crystal Polydron CMY Set suitable for?
  It is designed for children aged 4 years and above. The manufacturer states this age guidance directly on the product listing.
• How many pieces come in the Crystal Polydron CMY Set?
  The set includes 48 transparent squares in cyan, magenta, and yellow. This gives enough pieces for a range of shapes and simple models.
• How does the Crystal Polydron CMY Set teach colour mixing?
  The cyan, magenta, and yellow pieces are transparent, so their colours combine visually where pieces overlap. This gives children a direct, hands-on way to see how colours mix as they build.
• Is the Crystal Polydron CMY Set easy to clean and store?
  Yes, the pieces are dishwasher safe up to 70 degrees Celsius, and the set comes in a sturdy, reusable carton. This makes it practical for repeated use at home or in school.