ITEM NAME:Plastic Surfboard Longboard Surfing Fins Clip Buckle Accessaries img *{margin:0;padding:0;.1 Piece Surfboard Fin Clip. Suitable for most of the Fins. Used to lock the fin after we insert it into the base to stop it from falling off. SKU: FUZ0001931354045290. Color may be slightly different since different monitor.