This is the Akona Aluminum Finger Spool with Double Ended Snap Bolt Features: Includes double ended clip Stainless steel clips High Visibility Orange Color Line Ideal for cave and wreck dicing, scuba diving, the travelling diver, snorkeling, photography, and other underwater activities Dive safely with our strong, lightweight and durable Aluminum Spools. Featuring a braided nylon line and a stainless steel double-ended bolt clip that is corrosion resistant and easily attaches to our spools in any condition.