Clear robust, flexible, corrosion-resistant aircraft cable key ring. Patented ball and socket closure locks and unlocks easily. Use as key ring or binding ring to hold products or documents together. Often used for aircraft cockpit instruction manuals. Nylon coated cable and monofilament available in black, blue, purple, red and green Standard Length is 125mm (5") when undone. Measures approximately 40mm (1.5") across when done up.