This handy device can make all the difference in promoting long sled runner life. These spring loaded scratchers drag in the snow creating a spray of ice chips into the skid frame, lubricating your slide runner. The Ice Scratchers allow for removal of wheels thus reducing sled weight. When not in use, they simply hook over the rails. Kit comes complete with drilling and installation instructions. (Sold in pairs)Does not fit FX Nytro XTX