Guaranteed to precisely fit pool cleaner parts, these pool cleaner tracks are highly compatible with MX6 and MX8 models. With an inside diameter of 5.5 inches, an outside diameter of 6 inches and a width of 2 inches, these rails fit perfectly and safely. and will last at least 2 years! High quality MX8 and MX6 tracks. OEM – Extend the life of your in-ground pool cleaner tracks by choosing high-quality replacement parts. These precision replacement tracks are manufactured to perfection. Made from rugged rubber that exceeds OEM standards. High quality, affordable price – what a deal! Give new life to your your pool cleaner – Don't wait until scrapes become a bigger problem. Avoid damage and save tons of money by replacing your MX6 and MX8 tracks today. Better yet, install the pool cleaner rails yourself, this will save you a lot of money down the line. long term. Easy to use. install without tools – it takes less than 10 minutes, the basics of track operation and virtually no effort.