Axiom Polaris RZR XP nerf bars rock sliders tree kickers and FREE Unhinged ATV Hat!!! Please Note: Your hat may ship separately from the rest of your order! These are some of the strongest and best engineered Tree Kickers available for your RZR. The simple design is sleek and effective providing protection where you need it. Made from 1.50” dia x .109 wall steel tubing they are strong yet lighter than the competition. Mounting pins are custom machined stainless steel. They feature a durable powder coat finish in 8 standard colors. Lime Squeeze, Satin Black, Gloss Black, Black Texture, Gloss White, Light Red, Dark Red and Voodoo Blue. Mounting instruction and hardware are included.