Polydron Bridges set Class Set 322 Pieces

Build all of the eight bridges, at the same time using the 12 work cards included in this pack. You can build the following bridges: truss, suspension, cantilever, drawbridge, cable stay, swing and bascule. Each square piece measures 7.5 x 7.5cm. This 322 piece set contains: 70 Frameworks Squares, 68 Frameworks Equilateral triangles, 44 Squares, 14 Frameworks Rectangles, 56 Frameworks Right Angle Triangles, 4 Frameworks Isosceles Triangles, 4 Frameworks Root 2 Triangles, 8 Struts 330mm, 2 Struts 110mm, 3 Struts 80mm, 4 Pulleys, 2 Handles, 4 Square Holes, 2 Rectangles with Holes, 2 Hinges, 8 Double Squares, 6 Eyelets, 15 Plinths, 2 Laces with ends, 4 Laces, 2 Suspension Laces, Work cards, and a book. Age: 9+. 9 YRS+