K'Nex® Real Bridge Building Kit
Build 7 types of bridges from this 2282 piece set any two simultaneously. Includes real world examples of arch, beam, truss, cantilever, suspension, cable-stayed and bascule bridges. All models are 5' to 6' long and to scale. Includes 144-page teachers guide, written to meet NSES and ITEA standards and a FREE CD-ROM to facilitate printing extra building instructions. Two large storage trays with lids.