Design: Multi-coloured 3D snowflake blocks. Set options: 120-piece set of small blocks | 90-piece set of large blocks | Upgrade for both sets! Block sizes: Small blocks have a 3.2cm diameter. Large blocks has a 3.7cm diameter. Blocks: Get a kid's 3D building block set. Ideal for: Building blocks to encourage creativity, imagination, building and problem solving - the models you can make are endless! Colour options: Choose Light Colours or Dark Colours. Kid's 3D Snowflake Building Blocks | Small | Living Social