POLARIS SNOWMOBILE PREMIUM REVERSIBLE ICE SCRATCHERS - 2890644Replacement for Part# 1545166,1545167 These innovative devices fasten to the rails to throw ice chips into the suspension. They drag in the snow along the skid frame, providing lubrication. Maintains optimum track and engine temperature in a wider variety of snow conditions delivering an enhanced riding experience Single coil design for increased durability on the trail Fully reversible scratchers for added durability and convenience Standard on MY24