1、Diameter and Size: Each round carabiner is approximately 54in in diameter and 0.16in in thickness, the proper size and weight fit for various aspects, easy to use and operate. 2、Strong Copper: These spring buckles are made from premium copper material in high strength, which is sturdy, durable and resistant to rust and wear. Beautiful color making it become popular DIY accessories. 3、Wide Application: These spring O rings are are suitable for making harnesses, clothes and luggage belts, handbags, keychains and dog collars, handbag, flat cords, lanyards, belts and more. 4、20 Pieces: You will receive 20 pieces of round snap clips in total, which can meet your different demands, and you can share them with your friends and family for great fun of DIY. 5、Spring Opening: These round spring keyrings feature spring opening design that makes these rings easy to use and the secure closure ensures that your belongings stay safe. 20 x Spring O Rings Item Type: Spring O RingsMaterial: CopperQuantity: 20 PiecesProduct Size: Approx. 39 x 4mm / 1.54 x 0.16in ( Manual Measurement, Slight Error May Exist )