EXELLENT HOLE SHOT * RESPONSIVE MID RANGE * LOW STEERING TORQUE IMPRESSIVE TOP END * SUPERIOR ROUGH WATER STABILITY * INCREASE FUEL ECONOMY * DURABILITY * REDUCE CHINE WALK * ONE PIECE CASTING WHY GO WITH TURBO? Turbo is a progresive pitch prop that gives you an extra hole shot and top end speed. They are a one piece cast which means no blade slinging. They run a cup on the outer tip of the blade to you give you the bow lift you need. Bow lift reduces drag. Drag reduction gives you top end speed. Turbo also has a high rake blade design that will give you addiational bow lift. They're thinner blade slices through the water easier then any other stainless propeller on the market. Ventilation holes for an extra jump out or the hole, and in case you run a ground the rubber cushioned hub will take the shock. Turbo 4 Blades Mercury Yamaha OMC TURBO 1 14 1/4" Large Hub Mercury Yamaha OMC TURBO 1 13 1/4" Mid size Outbords Mercury Yamaha OMC TURBO Hot Shot 10 1/8" Small Outbords Mercury Yamaha OMC (c) 2005. Soderbloom Manufacturing Inc. All Rights Reserved.