Multi-Purpose Carabiner-PANDENGZHE locking Carabiner Clips are suitable for securing pets, dog leash harness, camping, fishing, hiking, backpack, hammocks, outdoors and gym, paddle, traveling, punching bag, attach sports bottles, keychain, small travel tools, fix heavy object on a pickup truck. Not For Climbing. Screw Lock Carabiner– Screw up to lock, screw down and push the spring rod to open. The compact design allows you to operate with one hand, you can use them for a tie down or leash dogs. With the screw-gate design, it is much more safe to carry keys etc. Swivel Clasp Rotating C Ring-Thesecarabiner clips are designed with swivel ring, it is more convenient and easier to be used as a pet connecting buckle clip hook, backpack hook etc. Heavy Duty Carabiner- Each carabiner features minimum breaking strength at 4.5KN (equals to 1011 lbs.). Durable, Lightweight & Strong- Durable material, made of high-quality aluminum 7075, only 24g each, rust-proof and anti-friction.