High-grade Material: Made from high-quality wooden material, the Desktop Gadget Toy contains stainless steel wires, featuring great durability and excellent appearance.Please note: This item can only be used as ornamental decoration As a toy for kids, teens, and students to play with, the Toy can bring great joy, decorate your table, and help learn physics knowledge. Large Application Range: Like a delicate and beautiful tabletop decoration, the Electronic Marble Perpetual Motion Machine is also a science educational game toy for kids to learn about physics knowledge. Exquisite Craftsmanship: Durable for long service life, the Running Marble Perpetual Motion Toy has been processed with exquisite craftsmanship, which adopts complex technology and accurate structure. Ideal Gift for Kids: To help the time pass and relax themselves, this is an ideal gift for teens, kids, children to play with and learn physics knowledge.