Features [2 PIECES HYDROFOILS] Includes a pair of hydrofoils for 4-50HP outboard motors to significantly reduce fluid resistance and improve performance. [EXCELLENT MATERIAL] Made of ABS material with good toughness, UV protection and can withstand harsh marine environments. [GOOD STABILITY] The outboard hydrofoil can be used to increase stability to provide faster gliding and a smoother ride. [MULTIPLE FUNCTIONS] Reduced drag and cavitation, reduced fuel consumption, improved high and low speed steering and less arcing. [EASY TO INSTALL] Equipped with stainless steel screws, nuts and washer accessories, which is easy to install and disassemble. Specification: Item Type: Hydrofoil Product material: ABS Color: Black Distance between mounting holes: approx. 6 cm/2.4 inches Applicable: Suitable for outboard propellers under 50 HP Package list: 2 x Outboard Stabilizer Fins 1 x Mounting Accessories Package Package List 2 x Outboard Stabilizer Fins 1 x Mounting Accessories Pack