Feature●【Sturdy and Durable】 Our RV stabilizer jacks are made of premium-grade aluminum. Rust-resistant and corrosion-resistant. Each jack can support up to 6000lbs.●【Extra Accessories】 Each set of stack jacks comes with 4 nuts and 4 cushion rubber pads. Makes the RV more stable and reduces noise and wear and tear on the vehicle.●【Adjustable Height】RV stabilizing jacks are easily adjustable from 11" to 17" (280-435 mm) for user convenience.●【Buy With Confidence】 OULEME specializes in the production of automotive tools and accessories. We DO NOT sacrifice quality for the price. Contact us with any questions.Description