ITEM NAME:500KG Auto Locking Carabiner Rotating Ring Outdoor Hook Description: Auto self locking carabiner Attached with a rotating ring Portable, light-weight and convenient Can be used as a pet connecting buckle clip hook, hammock hanging buckle, backpack hook etc. Great for outdoor activities, such as climbing, camping, fishing, hiking, traveling, keychain etc. Specification: Material: aluminum alloy 7075 Total Length: Approx. 3.46 inch/8.8 cm Width: Approx. 1.5 inch/3.8 cm Inner Diameter of the Attached Ring: Approx. 0.63 inch/1.6 cm Max. Load: Approx. 500KG Package Includes: 1 Piece Carabiner Note: The black carabiner's screw part's color will send black or sliver randomly. This carabiner is not suitable for rock climbing..Auto self locking carabiner. 1 Piece Carabiner. The black carabiner's screw part's color will send black or sliver randomly. This carabiner is not suitable for rock climbing. Attached with a rotating ring.