●SUITABLE - Adjustable Outboard Motor Bracket for Motors Up to 20 Hp with a maximium weight of up to 88 Lb. Vertical Travel: 11-Inch (279mm) ●MARINE-GRADE - Made from 316 Stainless Steel (Base) and Black Polypropylene (Frame). Design to Resist the Condition of the Marine Environment ●EASIER TO OPERATE - With 5 vertical running position lock bar to compensate for water surface and boat load conditions. Heavy-duty stainless steel torsion spring ●TWIST LOCK SAFETY - Dual Twist lock safety knobs secure bracket in place. Mounting Hardware: Transom Plate Bolts are not included ●MEASUREMENTS - Mounting Board: 10-1/4-Inch (260mm) x 7-1/2-Inch (190mm) - 1-3/8-Inch (35mm) Thick. Transom Plate: 4-3/8-Inch (111mm) x 3-1/4-Inch (83mm). FIVE OCEANS, 40 Years Developing High-Quality Marine & Outdoor Products