Features: 1.SUPER QUIET: Hamster exercise wheel has super quiet bearings, dustproof and quiet, removable kit design, parts can be replaced, longer service life. 2.REMOVABLE: Silent hamster exercise wheel with back knob design, rotate to disassemble, disassembly and clean the interior more convenient. When rotating to disassemble, please grip the running wheel part to prevent slippage. 3.FULL WRAP: Quiet hamster exercise wheel with full wrap design, vertical inner wall, running more stable, not shaking, more secure internal space, free running, not afraid of pets are thrown out more assured. 4.WITH STAND: Hamster running wheels with placement stand, according to the use of space and the use of different objects, the free choice of running wheel placement. 5.SAFETY EDGE: Hamster spinner wheels with non slip safety structure, with 2cm/0.8in pitch non slip belt, soft bump does not hurt the feet, edge safety treatment, soft rounded edge to avoid injury. Specification: Item Type: Silent Hamster Exercise Wheel_x000D_ Material: PP, PS, ABS_x000D_ Size: Approx. 13x9.5x16.6cm / 5.1x3.7x6.5in_x000D_ Usage: Hamster Running Wheel with Stand_x000D_ Applicable Objects: Pygmy Hamsters, Juvenile Golden Bears, Etc PackageList: 1 x Stand 1 x Running Wheel 1 x Bearing 1 x Bearing Nut 1 x Running Wheel Back 1 x NutRing Note All data are measured manually, and there are certain errors in the measurement results.