Gotobuy 4 Pack 5000 lb RV Scissor Leveling Jacks Trailer 100% brand new leveling scissor jack with great strength To raise,level and lower RV,camper and others for tyre repair/change Made by heavy duty iron with a large load capacity of 5000 lbs Anti-corrosion crank handle for adjusting height 0.6 inch diameter steel thread ensures durability and safety