zinc alloy Imported 【Round Carabiner information】 Package includes 15pcs spring O ring round carabiner snap clip. Round snap ring clip outter diameter about 1.26" (32mm),o rings inner diameter 1" (25mm), snap ring thickness: 5mm. Please understand that manual measurement may have ±1mm. 【Material】 The round carabiner clip snap spring O ring is made of high-quality zinc alloy, electroplated surface, anti-rust, and anti-corrosion, which are shiny, lightweight, and durable.The spring snap O ring has a smooth surface and edges that will not scratch your item, round buckle hook available as your DIY craft accessory. 【Ease to use】 Spring O ring keychain clip design is easy to use and when closed is secure. 【Widely Use】 Round keyring clip can be used for key ring, small dog leashes, dog collar tags, purse charms clip, handbag, shoulder bag, bag tassel, keychain clip ,keychain lanyard ,also can be used to extend the strap onon your hand bag, shoulder bag or cross body purse. NOTE : These spring clip round carabiners can not be used for some intense exercise such as mountain climbing or holding your boat to the mooring line although it is strong enough. DEVPSISR 15pcs Trigger Spring O Rings Round ,Metal Keychain Ring Round Carabiner Clips for Keyrings Buckle, Bags,Purses (Gold, 1 inch)