Features [2PCS HYDROFOILS] Includes a pair of hydrofoils for 4‑50HP outboards to greatly 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 a faster glide and a smoother ride. [MULTIPLE FUNCTIONS] Reduced drag and cavitation, reduced fuel consumption, improved high and low speed steering, and reduced arcing. [EASY TO INSTALL] Equipped with stainless steel bolts, nuts and washers accessories, which is easy to install and disassemble. Feature: 1. [2PCS HYDROFOILS] Includes a pair of hydrofoils for 4‑50HP outboards to greatly reduce fluid resistance and improve performance. 2. [EXCELLENT MATERIAL] Made of ABS material with good toughness, UV protection, and can withstand harsh marine environments. 3. [GOOD STABILITY] The outboard hydrofoil can be used to increase stability to provide a faster glide and a smoother ride. 4. [MULTIPLE FUNCTIONS] Reduced drag and cavitation, reduced fuel consumption, improved high and low speed steering, and reduced arcing. 5. [EASY TO INSTALL] Equipped with stainless steel bolts, nuts and washers accessories, which is easy to install and disassemble. Specification: Item Type: Hydrofoil Product Material: ABS Colour: Black Mounting Hole Distance: Approx. 6cm / 2.4in Applicable: Suitable for outboard propellers below 50HP Package List: 2 x Outboard Stabilizer Fins 1 x Mounting Accessories Pack Package List 2 x Outboard Stabilizer Fins 1 x Mounting Accessories Pack