SUP enthusiasts and longboarders, take note!! Essential BOX FIN screw bolts for longboarders ☆ Set of 2 #Click here for a list of surf-related products from Mitch SHOP The QUICK SNAP SYSTEM, which allows for one-touch movement of single fins even in the ocean, has become even easier to use! By changing the conventional cylindrical pin to a set screw type, the need for hammers, pliers, etc. has been eliminated. Just tighten with the included hex wrench! The conventional product required one per fin, but the QUICK SNAP SYSTEM II is a set screw type, so you can remove the base and use it on other fins, making it convenient! ● Excellent for adjusting the position of the center fin underwater and easily removing it ● Quick fin lock screw that allows you to instantly attach and detach surfboard fins without tools ● Made of all-stainless steel, resistant to rust ● Included: Pin / Spring / Base metal fitting / Set screw / Hex wrench Material: Stainless steel Pin length: 36mm Pin diameter: 4mm (Note) Cannot be used for fins with holes smaller than 4mm, so please check the diameter of your fin holes before purchasing. 【Accessories】 Pin / Spring / Base metal fitting / Set screw / Hex wrench ☆ The 2nd to 6th photos are the actual products. Please note that this is a bargain sale as the product does not have packaging. ☆ We sell various surf, snowboard, and outdoor items, so please check out our other listings too(^^)/ Surfboard Longboard Shortboard Funboard Mid-length Alternative SUP Paddleboard Bodyboard Softboard Sponge board Skimboard Surfer's ear Earplugs Ear plugs Deck pad Deck pad Leash cord future FCS Set screw Fin Single fin Center fin Tri-fin Wax Repair Hard case Knit case Deck cover Wetsuit Semi-dry Full suit Jacket full Seagull Spring Long spring Long john Short john Tapper Rash guard Wetsuit Surf pants Innerwear Vaseline Sunscreen Sun oil Poly tank Surfboard stand Wax stand Fin key Screw Screw bolt Fin bolt Fin box