- 4M GREEN SCIENCE ECO-ENGINEERING SALT POWERED TRUCK
4M Green Science Eco-Engineering Salt Powered Truck. Build this Truck and Prepare its battery for action. Then add some salty water and watch the truck go.. Contains truck body, wheels, scoop, axle with gear, plain axle, battery cartridge, sachet of active carbon, motor with wires, dropper, cup, magnesium sheet, fabric sheet, copper sheet and instructions, is apporx 10cm when built. Age 8+
4M GREEN SCIENCE ECO-ENGINEERING SALT POWERED TRUCK4893156034090
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