Start and end your camping experience without breaking a sweat! Here’s the NEW Stromberg Carlson JET-4500, featuring ball screw technology for a smoother, quieter set-up and tear-down. 4500 lb capacity. Ball screw mechanism. 18″ travel in 60 sec. Additional 4.5″ drop-down leg. 9.5″-32″ height range from ground to mounting plate. 3 separate LED lights. Emergency crank-through head. Built-in level. 2.25″ heavy wall outer tube. JET-4500