This is a spare shaft holder for your speargun. Many spearguns (Koah for example) already have a holder built into the butt of the stock but you'll need to add a clip to the muzzle end of the gun to hold your spare shaft. Or... if you don't have any option currently on your gun, you can add 2 of these to secure your spare shaft along the side of the stock. Comes with screws and color may vary.
