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Wheel diameter: 51
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Assorted Class Pack of 144
Three heating options give users the flexibility to customise test methods and temperatures for different materials
Polydron Bridges Set 255157 Wheel diameter: 51Build any of 8 bridges one at a time 134 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