This RV scissor stabilizer supports 5000 lbs, with a 4-23.4 inch lift range for stable parking. Made of electrophoretically treated steel, it provides reliable support and is easy to operate solo with an extended hand crank and a magnetic level. The RV leveling jack features a widened base design, providing more stability for long-term parking and avoiding deformation under heavy pressure. The included extended hand crank provides effortless lifting, while the magnetic bubble level helps you easily adjust and level your RV with minimal effort.