Protect vital rear suspension components of your Polaris RZR power sport vehicle with these HMW Trailing Polaris RZR Arm Guards, which absorb impacts from off-road obstacles and let you enjoy aggressive rock sliding. HMW (high-molecular weight polyethylene) is strong, durable, and has a low coefficient of friction which means it slides over rocks and obstacles better than most other materials, so you keep rolling. These ¼ in. thick Trailing Polaris RZR Arm Guards protect your Polaris RZR side-by-side’s suspension components so you can enjoy your off-road riding with confidence and peace of mind. They are styled to match the stock suspension components, and they install quickly and easily with J-hook mounting. Molded to fit wrap your trailering arm to provide full protection.