Carabiner is a great accessory for outdoor climbing, yard swing, Hammock. It can make these acitivities easier and safer. Meanwhile, it can also be used as keychain, bottle connector and so on. Such a multi-functional accessory. Worth your buying! Please don't miss!Features:1.Premium Material: Made of quality Zinc Alloy, these carabiners are durable for long time use2. Heavy Duty: This carabiner can hold load up to 660lb 3. Easy Installation: This accessory can make swing intallation easy and enjoyable4. Other Functions: This also can be used for hammock, climbing, keychain, and bottle connector 5. A great accessory for outdoor and indoorSpecifications:Material: Zinc AlloyColor: SilverPackage Weight: Approx. 111gSize: Approx. 8*3.8 cm/3.15*1.5inchPackage Included:2 x Carabiners OnlyNote:1. Please allow 0-1cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.