[material]: Stainless steel surf fin screws will not rust in water or salt water; In addition, the rubber O-ring acts as a "spring" to pressure on the screw and to tighten the screw without scratching the plate. [Easy to use]: Tightening the rubber O-ring by hand means that no tools are needed and no screwdrivers are needed to install, adjust, or disassemble long plate fins or vertical paddle fins; There are no more tools that can make you groundwater faster. [Protect your surfboard]: So far, some people have always used screws to fix the long fins of the board, and are always frustrated with screwdriver jumps and scratches on the fins/board. Those days have already passed. These fin shaped screws will definitely protect your surfboard or paddle board. [Compatible]: Our fin screws are suitable for most standard surfboard fin boxes used for long boards, SUPs, single fins, and paddleboards; These fin screws are perfect for any plate with a central box fin. [What will you get] A package includes 6 surfboard fin screws, sufficient in quantity to meet your , which is great for your daily surfing meetings. Colour:Silver Material:Stainless steel Package Contents: 6 * paddle board fin screws 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.