This Heavy-Duty Cordura Nylon Bag Hinges Open on a Wire Loop to give an 18" (45.7 cm) Diameter Access Point for Tools, Supplies or Recovery items. The Wire Loop Handles are large enough to slip up your arm, thereby freeing both hands. This unique bag is shaped like a half-moon, measuring 24" x 15" (61 x 38 cm) with an 8" x 10" (20.3 x 25.4 cm) Outside Pocket. There are a total of 18 Brass Drain Grommets which allow Trapped Water to Drain Quickly. Strong Delrin D-Rings on the bag secure it you during your dive.