A great way to introduce children to building their first 2D and 3D shapes with eco-friendly magnetic pieces.The pieces are made from 30% eco material and 70% ABS and are supplied in 4 colours with a neutral on the reverse.This colour coding will help children to understand the concept of magnetic polarity. Designed for individuals or small groups, this 24 piece set contains 12 equilateral triangles and 12 squares. The pieces are compatible with all existing Magnetic Polydron sets. Building guide included. Contents: 12 equilateral triangles and 12 squares. L x W x H (cm): 12 x 12 x 4.Weight (kg): 0.40. PreK and Up.