Ideal for use with a light box or against a light source this magnetic Polydron set contains 64 translucent pieces designed to make a children's first 3D shapes. This 64 piece set contains 24 Squares and 40 Equilateral Triangles.WarningThis toy contains magnets or magnetic components. Magnets sticking together or becoming attached to a metallic object inside the human body can cause serious or fatal injury. Seek immediate medical help if magnets are swallowed or inhaled