Number Tags & Key Rings Set: 50 Pcs Key Tags and 50 Pcs Stainless Steel Rings, Wear-Resistant and Durable. Suitable for Organizing and Sorting Keys, Luggage, Cabinet Keys, etc. Material: Numbered Key Tags are made of High-Quality Aluminium Alloy, Waterproof and Rustproof, Wear-Resistant, Sturdy and Durable. Smooth Surface, Safe for Hands. Practical Number Keyring: Metal Key Tags with Key Rings can Easily Organize or Sort Keys, Lockers, Dorm Keys, Car Keys, Luggage, etc. Also Useful as Labels to Mark or Number Items for Identification. Specifications: The Keychain Numbers are Blue, The Tag's Diameter is 3cm, and the Steel Ring's Diameter is 2.8cm. The Key Tag's Background is White, and the Digital Number is Clear for Easy Identification. Wide Application: Numbered Key Fob is Suitable for Hotels and Guests, Gyms, Schools, Indoor and Outdoor Pools, Warehouses, Restaurants, and More. Ideal for Luggage Storage and Identification of Items.