Caliber 13211 TraxMat Grips Snowmobile Track Grip System Stop the damage to your trailer decking or ramp caused by studded tracks Provides excellent traction when loading and unloading your snowmobile Two sizes available: 54in L x 18in W x 1/2in H or 72in L x 18in W x 1/2in H Bottom groove design allows moisture to dissipate and dry out, preventing deck rot Stainless steel mounting hardware included