Mercury Marine Black Max 10-1/8 x 15 Pitch 3-Blade Aluminum Propeller Prop Size: 10 1/8 x 15 pitch; Rotation: Right Hand; Material: Aluminum Size: 10 1/8 x 15 pitch; Rotation: Right Hand; Material: Aluminum Measures approximately 3 1/2" OD across the back of the hub. Includes (1) Flo-Torq Reflex hub kit, part number 835257K12 Recommended for use on boats with up to 250 HP and a top speed of less than 50MPH Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included