Hamster Running Disc Toy Silent Rotatory Jogging Wheel Pet Sports Wheel Toys New Features: 1. Exercise wheel for small pet such as hamster, gerbil, etc. 2. Anti-slip strip, protecting your little guy from sliping over due to inertia. 3. Made of premium quality plastic material which is environmentally friendly and wear-resistant. 4. Easy and convenient to install, quickly have fun. 5. Silent structure, your animal can run at night without disturbing others. Specifications: Materials: Plastic