The physics toy is made of plastic and zinc copper material, sturdy for use. Fruit battery science experiment kit is easy to . Follow the detailed assembly instructions, prepare fruits to DIY design, which will produce electricity. Features -Color:Yellow -Material:Plastic, zinc copper -Size:20.00X12.40X5.00cm/7.86X4.87X1.97in - By completing the fruit science experiment project with your child, let your child experience the mystery of science. - Fruit science toy in the experiments, allowing your child to develop a deep, lasting appreciation for fruit generator science. - Develop your child's imagination and hands-on ability, this physics toy makes your child more interested in scientific experiments. - This educational toy emphasizes fun, exploration, and discovery. Great as kids. - Made of reliable material, the physics toy can train your children's observation capability, scientific knowledge skills. Package list: 1 x Set of Fruit Science Toy