The FREINO Z Tri-Act. Has an integrated, friction spur, for increasing or adjusting friction, during a two-person descent or heavy -load lowering. It's easy to use and suitable to use with the, I'D S, I'D L, I'D EVAC and RIG self-braking descenders. � Rope is easily inserted into the spur, without opening the karabiner � Keylock-nose, ensure snag-free clipping Specifications � H shaped design improves strength and protects markings � Material: Aluminium � Weight: 75 g � Colour: Grey � Lock type: Automatic, triple action � Major axis strength: 23 kN � Minor axis strength: 8 kN �Gate open strength: 8 kN � Gate opening: 18 mm �Gate opening for friction spur: 12 mm � Certification(s): CE EN 362, EAC, NFPA 1983 Technical Use