Build 8 bridges at the same time 322 pieces with a wide variety of parts as shown in the key. Recreate iconic bridges from across the world. Unlock the secrets of bridge building with Polydron Bridges which gives budding Civil Engineers and Designers a chance to build and test several types of bridge designs, including some of the most recognisable, world-famous bridge constructions. Twelve comprehensive work cards and lesson plans provide step-by-step instructions to piece together truss, suspension, cantilever, drawbridge, cablestay, swing and bascule bridges. Build the following 8 bridges all at once: Pratt Truss, Howe Truss, Warren Truss, Deck Truss, Cantilever, Cable Stay, Suspension & Draw Bridge Also includes Extension Activities including Swing Bridge & Bascule Bridge Perfect for STEM. The set will encourage and challenge children to go beyond the set shapes and to experiment with their own creations. Product Code 10-9030 Range Original Polydron Bridges Age 9 years + Weight (kg) 6 L x W x H (cm) 43 x 31 x 30 Barcode (EAN-13) 5060164539827 Cleaning Method Dishwasher Safe - 70 degrees Celsius / 158 degrees Fahrenheit Piece Count 322