This is the XS Scuba Deluxe 50 pound Lift Bag Scuba Diving Lift Bag Features: 50 lbs. of positive lift Anti-spill bottom with baffle to allow easy fill from any second stage Combination oral and BC QD inflator Remains inflated until you empty it 2 Diameter OPV with pull for manual release Rolls up to compact size and stays closed with Velcro strap Elastic loop at top for chemical light attachment Stainless steel D-ring at top for slate attachment Lifting strap with stainless steel D-ring at bottom Bag is equipped with over pressure relief valve (OPV) with pull cord for manual release of air, has a stainless-steel D-ring at top for attachment of a slate, elastic loop at top for attachment of chemical light, and lifting straps with stainless-steel D-rings at the bottom. Lift bag rolls up to a compact size and stays closed with a hook and loop strap. "