The Vevor RV scissor jacks set provides stable support for RVs, campers, trailers, and motorhomes with a 5000 lb load capacity per unit. Its adjustable 4" to 23.4" lifting range helps level your RV on uneven ground. Built from steel with an electrophoretic anti-rust coating, these jacks are designed for durability in outdoor conditions. The set is easy to operate with the included crank handle and helps simplify leveling with magnetic bubble levels. Its widened base and thickened top improve contact and support during setup.