Product Dimensions:13 x 0.5 x 0.5 cm; 10 Grams Educational Objective(s):STEM Batteries Required?:No Batteries included?:No Material Type(s):Copper Specification: About this item Exercise Thinking AbilityBy assembling this model, your children can learn the circuit connection and experience the scientific experiment process.It also can exercise your children's thinking ability. Educational toy for your kids, more trial and entertainment. Children Educational ToyDIY assembled toys can well develop children's hands-on ability and thinking ability. Let children better understand the knowledge of physical circuits and the principles of chemical batteries. Note1. Color is random. 2. Fruit is not included. Installation steps: The long leg of the lamp bead is the positive electrode, and it is connected to the copper sheet. The short leg is the negative electrode and is connected to the zinc sheet. Easy to UseOur fruit battery is easy to assemble and disassemble, easy to use, enhance children's self-confidence, and let children learn happily. High QualityDIY fruit battery kit is made of high quality Metal materials, safe and environmental friendly, with fine workmanship and durability. Suitable for children to play. See more product details Exercise Thinking AbilityBy assembling this model, your children can learn the circuit connection and experience the scientific experiment process.It also can exercise your children's thinking ability. Educational toy for your kids, more trial and entertainment. Children Educational ToyDIY assembled toys can well develop children's hands-on ability and thinking ability. Let children better understand the knowledge of physical circuits and the principles of chemical batteries. Note1. Color is random. 2. Fruit is not included. Installation steps: The long leg of the lamp bead is the positive electrode, and it is connected to the copper sheet. The short leg is the negative electrode and is connected to the zinc sheet. Easy to UseOur fruit battery is easy to assemble and disassemble, easy to use, enhance children's self-confidence, and let children learn happily. High QualityDIY fruit battery kit is made of high quality Metal materials, safe and environmental friendly, with fine workmanship and durability. Suitable for children to play.