Versatile mid-sized, asymmetrical HMS karabiner for use with single, half or twin ropes. Features the Twin-Gate concept with second wire gate. Twin Gate is a revolutionary concept for locking a karabiner, developed by Grivel. The contact surface area is designed to optimise the rope‰Ûªs ‰Û÷flow‰Ûª. The round 12 mm diameter profile reduces abrasion to the rope even when toproping and abseiling, reduces rope drag and makes it easier for the belayer to pay out slack.