Using I-Beam technology to remove and redistribute metal and weight, the DMM Shadow Screwgate Carabiner has a useful 18mm gate opening and a weight of only 50g. The push-in strength is five times that of the European standard, and the squared-off spine makes for ergonomic feel without twisting, even with gloves.Major axis strength:  24kNMinor axis strength: 7kNStrength (gate open): 9kNWeight: 50g18mm gate opening62 x102mm