Pack Quantity-Pack of 20 Pcs Jump Chain Rings Keychains that will meet your daily use needs or craft projects. .DIAMETER AND DIMENSIONS - The split ring has a diameter of 35 mm and a chain length: 35mm. .PREMIUM MATERIAL - stainless steel, light but strong The round keyrings are made of metal alloy. .VERSATILE - Split keyrings are ideal for keychains, lanyards and other arts and crafts. You can use this keychain with broken chains to create your own DIY project. .Durable - The keychains are very strong because they are double stranded. Rings can snap securely in place to ensure your items won't fall out and become deformed or have gaps after adding keys. .