High Quality: The hamster wheel is made of high-quality plastic, strong, lightweight, durable, non-toxic, resistant to biting, wear and tear, and designed for long-lasting use. Easy Install: Can be easily mounted on the side of the cage or placed inside using a bracket. Align the square bearing with the red mark, tighten the nut, and securely hang it on the cage. Unique Design: Features a seamless three-point buckle design for added stability. Interior side pedals increase traction, while the thickened wheel wall helps maintain balanced rotation. Quiet Rotation: Designed for smooth and quiet operation, encouraging pets to exercise for extended periods without disturbing household members, even during nighttime activity. Widely Used: Suitable for small to medium-sized animals such as hamsters, chinchillas, pet rats, and other small pets, providing a safe and engaging environment for exercise and play. Product Material: Plastic Product Size: 12 cm running wheel Package List: 1 x Hamster Exercise Wheel