Outboard Engine Bracket Boat Rail Mounted. Will Fix Onto 22mm-25mm Tubing. The Boat Rail Mounted Outboard Engine Bracket Fixing Pad Is Manufactured From Marine Grade Plywood And Is Supplied With A Marine Grade Stainless Steel Tube Base. Outboard Engine Bracket Mounting Bracket Pad Size Is 210mm X 260mm. The Outboard Engine Bracket Will Take Up To 8 Hp 2 Stroke Outboard Engine.