Weize trailer scissor jacks has passed industrial standard testing ! <br>These 4 leveling scissor jacks with 5,000-lb capacity each will keep your RV level and stable.<br> Each adjusts from 4" to 24" inches as your situation requires, and the bow-tie base steadies the jack on soft surfaces.<br> <br>Features: Remains steady on soft surfaces because of wide bow-tie base Bolts or welds on, Includes 2 steel jacks and 1 crank handle.