Features anodized aluminum frame construction, nylon anti-friction washers and corrosion resistant zinc plated fasteners. Polypropylene motor mount offers 14-1/2" of vertical adjustment. Includes stainless steel counterbalancing torsion springs to make motor lifting easy. All necessary mounting hardware included. Recommended for up to 20 h.p.motors. Not to exceed 120 lbs. max. hp Rating: 20 hp, 2 stroke. 5 hp, 4 stroke.