Polaris RZR 1000-S Three Eighths Inch UHMW Rock Sliders. Factory UTV, the first name in UTV undercarriage protection introduces another industry first with their UHMW Rock Sliders for the Polaris RZR 1000-S. These sliders are constructed from ultra tough 3/8 inch UHMW providing that rugged yet very slick UHMW protection to your vulnerable and exposed RZR rocker panels. These can be run with or without our skid plates and give you the protection you need without robbing you of that much needed ground or side clearance or the low hanging hardware found on the Polaris Rock Sliders. Combine them with our UHMW skidplates and A-arm guards for the ultimate RZR protection package.