[FASTER PLANING AND SMOOTHER RIDE]This pair hydrofoils is suitable for 4‑50HP boat outboard, greatly reduce fluid resistance and increase balance performance. Can provides faster planing and smoother ride by increasing stability. [PROFESSIONAL DESIGN]This marine hydrofoil wing can reduces drag and cavitation to lower fuel consumption, improves steering at both low and high speeds, and can reduce bow rise. A necessary equipment for skiers, wakeboarders, etc., can help lift the skier out of the water much quicker. [ AND TOUGH]This boat stabilizer fins is made of high‑quality ultraviolet‑proof ABS, can withstand adverse marine environment conditions. With maximum durability and toughness, very safe to use. [EASY TO INSTALL]This boat motor stabilizer comes with stainless steel bolts, nuts and washers for easy installation, the distance between mounting holes(centre to centre) is 2.4in, simple assembly and disassembly. Color: Black Material: plastic Package Contents: 2x Hydrofoil Stabilizer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.