The Gearphun Junior Pulleys Add-On set 42650 is supplied in a bag with 4 Instruction sheets and is designed to be used with Gearphun sets. Each pulleys set has 9 pulleys and 4 silicone bands. This will enable you to connect pulley wheels using our bands or some string. Gearphun is an award winning product, see our awards page for more details.
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