Key features RV Support SystemThis RV stabilizer jack is used to add support to the RV frame that extends to the ground. It is designed to minimize the effects of vibrations caused by people walking around, appliances running, or external forces like wind gusts. Heavy Duty and DurableAluminum construction makes the RV jack lightweight but strong enough to hold over 6,000 lbs. It provides lightweight portable stability. The powder coating prevents rust and scratches even after long-term exposure to harsh environments. Customizable HeightThe RV jack stand features an effortless T-handle that can be easily and quickly adjusted from 11 inches to 17 inches, providing a safe and stable setup for your camper. Save a Lot of SpaceStackable for storage when not in use, its compact design makes it an ideal choice for people who are short of storage space or often on the go. Wide CompatibilitySuitable for RV, travel trailers, campers, pop-up trailers, etc. Tips: If you park on soft land, get the jacks situated on a solid block to prevent it from sinking into the ground. Free shipping included. 30-day hassle-free returns.