Description: "Electric Ball Pitching Machine Kits", you can use your imagination, graffiti freely, create a toy of your own. Exercise children's hands-on ability, let them understand simple knowledge about Mechanical conversion. DIY science toys children educational technology project model. Perfect physics toys gift to get friends or family together to craft, learn and have fun! Suitable for kids ages 4-12 boys girls. Specification: Warm Tips: 1. When assembling the product that requires the circuit, pay attention to the fact that the red wire is connected to the positive terminal of the battery case; the blue wire is connected to the negative terminal of the battery case. 2. All products is NOT including battery, the accessories are random in color, color is NOT specified, please read it carefully before purchasing. 3. Contains small accessories and sharp objects, children must be accompanied by an adult, please take care of children to avoid swallowing. Size Chart: 12x10.5x7.5cm/4.72x4.13x2.95inch Package Includes: 1 Piece Electric Ball Pitching Machine Toy Kits(after receiving the goods, you need to assemble it yourself)(4 Pack) Note: 1. This is not infant toy , please take away from kids to avoid eating. 2. Please allow slightly error due to manual measurement. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 4. Wish you a wonderful on-line shopping!