"Tree stumps or other shallow-water obstructions can wreak havoc on your outboard. Give your investment the power to shrug off obstacles with the Bob's Machine Stump Jumper Kick-Back Jack Plate. This intuitive, ultra-durable outboard jack plate sports delrin rollers and bearings for the smoothest operation on the waterno more need for chains or spring-like mechanisms in the competition. The Bob's Machine Stump Jumper Kick-Back Jack Plate has greaseable pivot points for simple maintenance and peak performance, along with locking pins to prevent the plate from kicking out in reverse or when trailing. Rates up to 115 hp. Weight: 28 lbs. 12""H x 17.5""W. Offset: 5.5"".Manufacturer model #: 100-105001. Lets your outboard ""jump"" underwater obstacles, to avoid a damaging impact Delrin rollers and bearings No need for chains or spring mechanisms Locking pins to prevent kickout in reverse or trailering Greaseable pivot points Rated for up to 115-hp motors"