When icy ground makes loading up your snowmobile almost impossible, the Caliber TractionLadder HD Snowmobile Ramp Extension provides additional surface area for your track to grip as it climbs. This collapsible ramp stores compactly when not needed, and sets up in minutes. The oversized extension hooks work with most loading ramp rungs, and is compatible with studded tracks as well as non-studded tracks. This snowmobile ramp extension is constructed from high-strength, lightweight aluminum and comes with a 500 lb. weight capacity. It is compatible with the Caliber PRO 2.0 folding Snowmobile Ramps (CBR-13527 and CBR-13527-S).