When hitching and unhitching loaded trailers, D-L heavy duty tongue jacks are real back savers. These easy-to-install, smooth operating jacks can be mounted in a variety of ways on various sizes of trailer tongues. They reduce the physical effort required to maneuver a loaded trailer into hitching position or removing the trailer from a vehicle. All models are made from heavy gauge steel for strength and durability. Features: 1,000 lb. capacity 10" total travel 25" maximum tongue height Side wind handle with extra heavy screw drive and ergonomic handle grip Heavy duty polypropylene 6" diameter wheel resists flat spots and cold weather cracking Zinc plated TUFFPLATE finish for additional rust resistance and longer life Easily swivels up for towing or down for stowing and locks in place in either position Includes all necessary bolt-on mounting hardware Made in the U.S.A. Totally enclosed outer tube helps protect miter gears and heavy duty Acme screw from sand and dirt Fits square tongues up to 3" x 5" 2-1/2" diameter mounting hole in swivel bracket fits most other brands of mounting hardware Floating miter gears allow for proper clearance and easier operation Tough polypropylene wheels or zinc plated foot Ergonomic molded handle grip with textured surface Swivel jacks also offer these easy-to-use Easily pivots between horizontal towing and vertical operating positions Reduce cranking to a minimum when disconnecting from towing vehicle Locking mechanism is spring loaded