4M Tin Can Calculator

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Build your own battery with the 4M Tin Can Calculator. Create green energy by making your own batteries using recycled soda cans and pencils. This set teaches you the science of creating electricity in a fun hands on experiment. Your assembled tin can battery generates enough juice to power the included calculator for hours. Made using safe and high quality materials, this product is designed to last. Give the gift of science with toys and gadgets that foster curiosity and encourage scientific learning. Recommended for ages 8 and up.