Description Replacement interior pocket for the Halcyon’s Active Control Ballast (ACB) system. Replaces the Halcyon 6lb ACB Replacement Pocket. Features: handy carry handle Secure velcro flap Questions? Need help choosing the best gear for you? Contact Us for helpful advice, additional size, colour, and customization options (as applicable), shipping help, and more. Can’t find what you’re looking for? Let us source it for you! The availability of Back Ordered items may vary and require additional shipping time.