"This tough DuPont nylon/fiberglass bracket allows anglers to mount a trolling motor without having to weld blocks to their flat-bottom boat. The Trolling Motor Bracket fits into the bow or stern handle of your jon boat for quick and easy removal or application. Angle is easily adjusted when in the bow-mounted position. To remove bracket, simply lift it out of the handle. Accommodates up to 35 lb. thrust trolling motors. Shaft hole: 2-1/2"" diameter. Nylon and fiberglass construction Fits into the bow or stern handle of your jon boat Easy on/off For use with up to 35-lb. thrust trolling motors"