Description: Sturdy StructureCat running wheel made of wood and is very durable, sturdy and stable Silent Cat TreadmillCat exercise wheel with silent roller when running, and narrowing the gap effective in preventing cats from pinching their feet Built In Locking DeviceCat wheel exerciser treadmill can be locked when no at home to avoid accidents when the cat is left unattended, cat play time can be controlled With Carpeted RunwayCat exercise treadmill with carpeted runway, thickened cover cloth can be taken off directly to clean when dirty, also avoid potential furniture damage. Easy to InstallThe cat treadmill with reserved installation hole location is easy to assemble Size Chart: (optional) Size S: approx 72cmx34.5cmx94cm/28.35inchx13.58inchx37.01inch Size M: approx 90cmx36cmx101cm/35.43inchx14.17inchx39.76inch Size L: approx 100cmx38cmx113cm/39.37inchx14.96inchx44.49inch Package Includes: 1 Cat Exercise Treadmill Note: Please allow slightly errors due to manual measurement and different monitors.