Gear up for action with this bumper construction set. Children create a structure by assembling the easy to use squares and triangles. Virtually any shape can be made and this variety of possible constructions encourages children to explore their creative thinking. Gears are added by simply pushing them into place. They ingeniously mesh together either on a flat surface or at an angle of 90 degrees. Once connected just turn one gear and see the rest of them rotate! Suitable for both indoor and outdoor use the pieces in this set are made from super tough HDPE and are safe durable and lightweight. This 58 piece set contains 24 Squares 4 Equilateral Triangles 10 Gear Squares 20 Gears and a Guide. Sides of square measure 21cm. Age 2+.