Product Features Retractable gear attachment system, designed to utilize and protect gear in severe environments with maximum break strength and durability. 80 lb. Break Strength Nylon/Kevlar line Impact-Resistance Plastic Case Higher retraction force, four times the spring life of standard version Longer extension to reach passenger compartment Locking mechanism for extended talk periods Includes D-ring for mounting to any existing screw Measures: 2.165 in x 2.625 in x 0.785 in Weight: 3.1 oz