Same "D" shape as Omega's 7/16" model, but with bigger material for increased strength. Same great handling and use characteristics but with a strength rating of 65kN (that's over 14,000 lbf!). Like all their carabiners, every 1/2" Modified D is individually proof-tested to half it's rated strength which means every one of these has been proven to hold over 7000 lbs! Specs: Gate Opening: 38 mm / 1.50 in Major-Axis: 56 kN Gate Open: 18 kN Minor-Axis: 11 kN Weight: 363 g / 12.8 oz Length: 152.4 mm / 6.00 in Width: 92.7 mm / 3.65 in