Part number R0526100; 6 inches outside diameter, 5.5 inches inside diameter. R0526100 Exact wheel tracks are made of high-quality materials tested by the manufacturer, with good flexibility, ultra-durability and high elasticity, which can increase the life cycle of parts by 50%. 100% new and of high quality.Made of high-quality heavy duty rubber.Upgraded wheel rail construction with a long service life and high performance, it is an ideal alternative to old, fossil or damaged wheel tracks for MX6 / MX6 Elite / MX8 / MX8 Elite Suction Cup Pool Cleaner. Easy to install, no tools required, all tracks can be replaced in less than 5 minutes., Weight: 0.29541943108 pounds, Manufacturer: Uikdjgu