Fast-Boot X is a premium quality CV Boot that provides coverage for high performance ATVs and UTVs and Heavy Duty aftermarket CV axles. Manufactured by Factory Spec Fast-Boot X CV boots are made in the US from premium quality rubber to minimize abrasion wear and provide a long service life. Fast-Boot X provides coverage for high performance ATVs and UTVs with long travel suspensions and for larger HD aftermarket CV axles. Fast-Boot X features a patented continuous convoluted design to more evenly distribute wear and minimize flex fatigue. Fast-Boot X can be installed like a traditional boot. It can also be installed “over-the-joint” using a Quick-Shot tool sold separately . Each Fast-Boot X kit includes a boot, stainless steel clamps, CV grease, banding tool and detailed instructions. Made in USA Fits the FRONT INNER OR REAR INNER of the models listed below 2016 Polaris RZR Turbo EPS 2016 Polaris RZR-4 Turbo EPS 2017 Polaris RZR Turbo EPS 2017 Polaris RZR-4 Turbo EPS 2018 Polaris RZR Turbo EPS 2018 Polaris RZR-4 Turbo EPS