Trailer Valet Trailer Jack - STC-V211 Heavy-duty jack with integrated drive function replaces your ordinary trailer jack and takes the hassle out of hooking up and moving your trailer. Simply turn the crank that powers the drive system and direct your trailer with the steering handle. Features: Trailer jack with integrated drive function lets you easily raise, lower, and move your trailer Drive your trailer to your hitch for fast, hassle-free hookup Effortlessly move your trailer into your garage or another tight spot Chain drive system is powered by easy-to-use hand crank Drive and steer your trailer with minimal effort Switch between high and low gears for effortless driving - even on an incline Drill attachment (TVDA - sold separately) can be added to power the drive with a cordless drill Dual positraction wheels for easy maneuvering One tire freewheels when you are turning, then reengages when turn is completed Steering handle helps you guide unit Automatic brake keeps trailer from rolling Chocks should still be used during storage Topwind hand crank makes jack easy to raise and lower Convenient swivel design Swing up to stow parallel to tongue for travel Move back into upright position for use Rugged steel construction with silver powder coat and zinc-nickel plating resists rust and corrosion Simple installation Heavy-duty bracket clamps to either side of trailer tongue Mounting hardware included