This is the Zeagle 6 cu ft QD Pony Bottle System with Razor Regulator and Pouch Features: 6 cu ft Pony Bottle Attaches to BC between vest and bladder assembly Razor octopus regulator Quick-Deploy Pouch The 6 cu ft Pony Bottle System is attached to a Zeagle BC in between the vest and bladder assembly. The octopus regulator is attached to a D-ring mounted to the vest and can be easily accessed by any diver. The pouch and bottle itself is positioned facing downward so that the drawstring opening of the pouch can be released allowing the bottle and regulator to be handed off to another diver while the pouch remains securely fastened to the BC. The grommet holes on the Quick-Deploy Pouch allow it to be securely mounted to many different BCs in many positions with plastic ties or barrel screws. This system is also available as a zippered LTD accessory.