Used IST Sea Diver Rubber Closed-Heel Scuba Diving Fins, Size: X-Large (44-46) Used Regulators The diver simply exhales through

The diver simply exhales through the nose into the mask as needed to keep equal pressure on both sides of the ear drum

The subsurface / underwater signal is produced by a percussion "buzzing" noise made by a piston hitting a stainless steel diaphragm much like a drum

A sheath is included

The i100 is the perfect dive computer for the new diver

Used IST Sea Diver Rubber Closed-Heel Scuba Diving Fins, Size: X-Large (44-46) Used Regulators The diver simply exhales throughPlease note this is a USED ITEM offer. The item will be in good working condition, may show signs of use or wear. PRODUCT DESCRIPTION Durable, comfortable rubber fins; Very flexible and powerful; easy to maneuver; Open toe box for quick drainage; Classic design with upright ribs channels water; Sturdy yet affordable; entry level fin. This product does not carry a valid manufacturers warranty.