Omega Pacific® 7/16" Steel Modified 'D' Carabiner is one of the finest alloy-steel designs available today. Super strength-to-weight ratio and a huge gate opening make this 'biner a must for every rescue kit. Gold Type II Chromate Plating increases corrosion resistance and internal locking threads eliminate rope wear. Easy-opening gate-lock design works under load. All 'biners are proof tested to 1/2 the rated break strength.