This mega value set is designed to offer you a great saving and price per piece. The set will occupy several classrooms, and a large variety of 3D constructions can be made at the same time. Each set includes 80 squares and 80 equilateral triangles. The set is suitable for both indoor and outdoor use. The large, chunky pieces are ideal for little hands to manipulate. Sides of square measure 21cm. Age 2+.