OMS Jon Line With Pouch & Bolt Snap A24918004 OMS 2.4 Metre Long Jon Line with Stainless 316 Steel Carabiner Hook, Black Nylon Storage Pouch with attached Stainless Steel Easy Grip Marine Grade Stainless Steel Bolt Snap & 25mm -1 Inch Wide High Quality Webbing Line. Designed to maintain position on a Shot Line during ascent & also to tether equipment to a Dive Boat before or after a dive while in the water. Easily attaches to a convenient point on B.C.D. or Technical Harness with the Stainless Bolt Snap or using the fixed Webbing Loop. Weighs 0.2Kgs.