Trailer Stabilizing Jack, 20 tons Lift Capacity

Keeps tractorless trailers leveled while being loaded or unloadedPrevents accidents if wheel support collapsesStabilizes vehicle against load shifts8" dia support pad8" wheels100 000 lbs. supporting capacity each and 40 000 lbs. lifting capacity1 year warrantyRecommended use in pairsLowered height: 39 1/2"Raised height: 51"