Science Experiment: DIY wooden conveyor belt kit, science experiment kits building toyMaterial: Eelectric conveyor belt is made of quality wood material, eco friendly, smooth surface, ensuring durability and longevityVersatile Use: Ideal for both home and school use, this Science Experiment Kits can be used in various settings. It's ideal for science fairs, classroom demonstrations or simply as a creative project for kids to enjoy in their spare time, promoting teamwork and collaborationInteractive Learning: The Wood Science Toy provides children with a fun and interactive way to learn engineering concepts. By building their own conveyor belt model, kids can enhance their problem solving skills and thinking in a practical and hands on mannerGift: Science Building Kits conveyor belt kits for kids ages 7-14, suitable for birthdays and holidays Specification: Material: Wood Size Chart: 27cmx8cm/10.63inchx3.15inch Package Includes: 1 Set Science DIY Conveyor Belt Note: 1.This is not infant toy, please take away from children to avoid eating.2.Please allow slightly errors due to manual measurement and different monitors.