Help keep your knife safe and secure while diving with your SCUBAPRO HydrosBCD (sold separately). Easy to install, this mounting accessory attaches tothe multi-mount matrix points on the Hydros. This set includes mounting plate,washers, two stainless steel screws, a carabiner, and thigh strap. Otheroptional 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 toconstantly innovate and improve the diving experience, SCUBAPRO buildsflawless equipment for the work, sport, and lifestyle of people whose passionis found below the surface.