A must have on a vessel from which Spearfishing or SCUBA diving is done. Consists of one oxygen tank (170 Liters/6.0 Cu.Ft.) with key, one adjustable flow regulatro (0-15 liters per minute), one hose and mask. All Packaged into a durable compact PVC Container. Height 18.5" x 15" circumference. Weight 6.8lbs. full.