SE SPORT 300 HIGH PERFORMANCE HYDROFOILSRecommended for 40 to unlimited HP. Dimensions: 14.5"x17.0". Longer bolts & 1" or 1.25" fender washers required on Volvo SX-A/DPS/DPR/DPH Series & the Volvo 280/290 Series. Will fit under Volvo mounted anode by reversing anode to wide end forward. Not recommended for Volvo Ocean Series XDP. Reduces planing time dramatically - increased lift w/cresent plane surface. Small footprint - 3 to 4 inches narrower w/23% more surface area than most foils. Turbo Trac enhances thrust & control. Rated fastest 0 to 30 mph & best in top end speed. Quick planing reduces gas expense & increases safety. Reduces or eliminates porpoising cavitation chine walking & deep-vee wander. Sleek shape. One-piece high strength engineering copolymer construction. High style graphics permanently molded in the foil. Heavy duty clear clamshell plastic packaging. Exclusive “Site Gauge” template for easy installation. Lifetime Warranty & stainless steel hardware included. Color Black