Petzl Attache 3D Screw-Lock Carabiner One Color, One Size 3D frame is 37 % lighter and 15 % thinner. Weight 55g Gru-V locking sleeve offers better grip Fluid gate design reduces the chance for slings or webbing to catch on the gate or locking sleeve Keylock system offers ease of use with webbing and slings. Available in SCREW-LOCK system only (with lock indicator) Strength: Closed - 22 kN; Open - 6 kN; Minor Axis - 7 kN; Gate opening 22mm