Polydron Engineering Set

Allows for the construction of 5 different models, but only one model can be made at a time. Gears include simple ratios – 8, 16 and 24 teeth. Each square piece measures 7.5 x 7.5cm. This 109 piece set contains: 2 Baseboards, 2 Small gears, 2 Medium gears,2 Large Gears, 1 Small pulley, 2 Medium Pulleys, 1 ‘O’ Ring 410mm, 1 Handle,2 x 80mm struts,1 x 90mm strut, 1 x 330mm Strut, 6 Stub Axles, 8 Stub Axle Connectors, 4 Squares, 10 Squares with strut hole, 24 Frameworks Squares, 4 Double Frameworks Squares, 12 Frameworks Rectangles, 8 Frameworks Right Angle Triangles, 8 Frameworks Equilateral Triangles, 1 Octagon with cut-out, 1 2m Long Cord, 1 x 3 Hole Linkage, 4 x 7 Hole linkages, 1 Cam & Work Cards. Age: 9+.