Michigan Wheel XHS Ballistic has a 10-1/8" diameter with a 13 pitch, Right-Hand rotation, and a hub for a 4.25" gearcase Propeller. Michigan XHS propellers are designed for speed and are compatible with the XHS and Flo-Torq II Hub Propeller Systems. The XHS Exchangeable Hub System from Michigan Wheel relieves shock and tension produced by changing gears. Key Features: The urethane-cushioned hub is engineered to spin under the heavy impact, and the XHS unit is detachable. The geometry of the Propeller Blades Designed in CAD Blade with a cupped tip and a trailing blade edge Stainless Steel Alloy - Highly Polished Performance-Optimized Blade Thickness Mercury Flo-Torq II compatible exchangeable (XHS) hub system Cushioned urethane hub and flared hub design. Fit for the Following Engine Type: Suzuki, Tohatsu, Yamaha Evinrude, Johnson, Honda, Mercury (30-70 Horsepower) Specifications: Brand: Michigan Wheel SKU: 933213 UPC: 014984020398 Weight: 6.00 LBS Pitch: 13 Material: Stainless Steel Hub Kit: Not Included Diameter: 10-1/8 inch Blades: 3 Standard 3-Blade