AAA Punch rated  Includes an internal bladder & high-grade adjustable straps  Internal bladders are replaceable  Hook & loop covered zipper enclosure for easy bladder replacement  NO dangerous metal parts, dangerous...

 Designed to be easily filled & refilled over time with the unique, easy-access, patent-pending REFILL LID  A great workout aid for improving boxing skills and techniques  Includes straps & tie-down...