Libingying Surf SUP Fin Free No Tool Fin Screw 9 inch Center Finfor Surfboard Longboard and Paddleboardwith Free No Tool Screws

【QUALITY MATERIALS】is constructed with fiberglass-reinforced nylon.2 different no-tool screws made by stainless steel,which gives this stiffness yet enough flexibility., 【SPECIFICATIONS】This surfing fin depth 9 inches,base width 5.5inches, Rake: 28°., 【HYDRODYNAMIC DESIGN】The center water fin features a hydrodynamic design,It greatly improves the durability and stability of fin,which also offers perfect balance of pivot, giving you more sense of security for water surfing., 【Easy to Install】We include our 2 different no-tool screws,for you to choose according to your need.so you can install this on your board right away without any tools and quickly detaches and attaches., 【COMPATIBILITY】This center fin is suitable for longboard surfboard paddle board and stand up paddle,Works on any SUP or surfboard with a standard 8.5" or 10.5" fin box.