4M Tin Can Calculator

$18.99

  • Can Calculator – Recreate your own battery in 2 recycled soda cans and run a calculator!
  • No more batteries in your calculator? No problems! Recycle 2 soda cans, 2 pencils and generate enough electricity to run the calculator!
  • An ideal gadget for classroom fries. !
  • The battery works with salt water.
  • Suitable for ages 8 years and up with 18 pieces, not including cans

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Tin Can Calculator
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Additional information

Weight 0.16 kg
brand

4M

dimensions

‎21.8 x 17.2 x 5.8 cm; 160 Grams