The FREINO Z carabiner has a friction spur for adding or adjusting friction during the descent. It is easy to use and compatible with I’D S, I’D L, I’D EVAC and RIG self-braking descenders. When rotated, it makes the descender loss-proof when being transferred from the equipment loop to the ventral attachment point or anchor. Descent control: the spur helps increase friction for improved descent control with a heavy load (e.g. two-person rescue situation) easy to use and control. The rope can be quickly redirected over the friction spur and removed with one hand Easy handling: rope is easily inserted into the spur, without opening the carabiner Keylock system, to avoid any involuntary snagging of the carabiner for use on a harness or an anchor When rotated, it makes the I’D S, I’D L and I’D EVAC (Versions starting in 2019) or RIG (Versions starting in 2018) self-braking descender loss-proof when being transferred from the equipment loop to the ventral attachment point or anchor TRIACT-LOCK: automatic locking with triple-action gate opening Gate opening: 0.70" (18mm) Gate opening for friction spur: 12 mm Major axis strength: 23kN (5171 lbs) Minor axis strength: 8kN (1798 lbs) Open gate strength: 8Kn (1798 lbs) Certification(s): CE EN 362, EAC, NFPA 1983 Technical Use