This is the Scubapro Hydros Pro Scuba Dive Knife & Accessory Plate Black Features: Includes mounting plate, washers, two stainless steel screws, a carabiner and thigh strap. Attaches to the multi-mount matrix points on the BCD. Help keep your knife safe and secure while diving with your SCUBAPRO Hydros BCD (sold separately). Easy to install, this mounting accessory attaches to the multi-mount matrix points on the Hydros. This set includes mounting plate, washers, two stainless steel screws, a carabiner, and thigh strap. Other optional Hydros BCD add-ons include an accessory bungee set, mini D-ring set, and color kits available in 9 vibrant colors (all sold separately). Driven to constantly innovate and improve the diving experience, SCUBAPRO builds flawless equipment for the work, sport, and lifestyle of people whose passion is found below the surface.