4M Science - Tin Can Edge Detector Robot
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Help save our environment by recycling a used beverage can to build this 4M Edge Detector Robot. It will move all over your table without ever falling off. Includes: base assembly with motor, 2 axles, accessories and detailed instructions. Required: a clean empty soda can, 1.5V AA battery and small crosshead screwdriver (not included). Age 8+ years. Part of the Eco-Engineering range. Distributed in New Zealand by Holdson.