The lightweight OK carabiner is made of aluminum. It has an oval shape that allows optimal loading of devices with a wide section, such as pulleys or rope clamps. Its fluid interior design and Keylock system facilitate handling.. . ?. . . Aluminum carabiner is lightweight to reduce equipment weight carried by the user. Symmetrical oval shape allows optimal loading of devices with a wide cross-section, such as pulleys, or rope clamps. Easier handling:. - fluid interior design limits the risk of having a catch point and facilitates rotation of the carabiner. - Keylock system to avoid any involuntary snagging of the carabiner. H cross-section:. - ensures an optimal strength/weight ratio. - protects markings from abrasion. TRIACT-LOCK: automatic locking with triple-action gate opening. May be used with a CAPTIV positioning bar to favor loading of the carabiner along the major axis, to keep it integrated with the device, and to limit the risk of it flipping. Certification: CE EN 362, EAC. Weight: 75 g. Major axis strength: 25 kN. Minor axis strength: 8 kN. Open gate strength: 7 kN. Gate opening: 22 mm.