Piranha Propellers C Series 3 Bladed Pack Of 3 Blades 11-3/4 X 17 | 113/417C Replacement Blade Set C Series 11-3/4 x 17 | Piranha Propellers 113/417C Generally used on mid-range horsepower motors (approximatey 70 Hp and less). The diameter of this blade does not often work well with outboard motors made by Johnson / Evinrude though. These blades are used with C-style propeller hubs.If you are not sure if this blade is appropriate for your use, please contact us for a recommendation.Please note this item is a pre-packaged SET of (3) propeller blades. Individual blades can be ordered separately. Additional Information Piranha blades are designed to absorb the shock of a propeller strike, protecting the lower unit, gears and prop shaft from damage. Each blade is manufactured from a specially formulated high-strength aerospace composite material. The center hub is manufactured with an aluminum core over-molded with the same high-strength composite used for the blades. Every Piranha blade comes with HydroBites — precision ridges that improve hole shot, reduce vibration and control ventilation associated with tight turns. The rear cap completes the propeller and secures the blades in the hub. If you are not sure if this blade is appropriate for your use, please contact us for a recommendation.Please note this item is a pre-packaged SET of (3) propeller blades. Individual blades can be ordered separately. You’ve probably already heard it all before from your veteran boating buddies, the folks at the marina, and every magazine writer in the business, that “You should always carry a spare boat propeller.” That’s not bad advice at all. But if you use a Piranha prop, we’ve got BETTER advice: “Always carry Spare Blades.” Piranha’s boat propeller offers the fastest repair time around, but it’s important to have the parts to do the repair with. Whether you use 3 blade boat propellers or 4 blade boat propellers, we encourage you to simply carry a full spare set. True, you probably won’t damage them all at once, but this way you can ensure the propeller remains properly balanced. It also maintains the correct propeller pitch. Besides, won’t you feel better knowing you can fix it if you do, without ruining the rest of your day?