Name: hamster running wheel Material: Log chassis, environmentally friendly plastic 1. Tightly combined, there is no "seam" to hit, the new technology is integrated, safe and seamless free running without getting stuck, the inner side of the anti-skid strip increases friction and prevents injury from falling 2. Structural design, smooth and non-slip, dual-axis design, quiet and stable, using dual-axis design Run freely without shaking, mute and more stable 3. The big running wheel, the new "quiet" world, there is almost no noise when the mouse runs at night, and it does not affect the owner's rest 4. Tailor-made, height adjustment, can be freely adjusted up and down, suitable for different heights of mice 5. Free running, no restraint, 20cm ultra-wide track, run as you want 6. The surrounding outer ring runs safely, saying goodbye to the right-angled edge to prevent the mouse from being thrown out when running 7. The parallel runway protects the spine better. It is suitable for the mouse to stretch the spine when running, to grow healthily and happily, to run freely, and to have a silent running wheel. Companionship is as important as good sleep. The silent "treadmill" of hamsters. color: blue Size: 20cm Delivery Quantity: 1 Piece