Light and versatile, like a spare tire, you don't know it's there until you need it. I bought this as a part of my bailout kit to replace an SMC mini eight I had dropped in the snow. I carry a self evac. kit to rap out of a stuck chair lift so it sits in my pack 99.9%. I carry all screw lock biners (I know it's old school) and this does not fit any of them! I wound up getting another SMC to replace the one I lost and now use this in my hammock suspension kit. It works great for quick adjustments… Full review
Rock Exotica makes advanced carabiners, pulleys, swivels, and other climbing equipment.