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, Spare Keys, etc. Material: Numbered Key Tags are made of High-Quality Aluminium Alloy, Waterproof and Rustproof, Wear-Resistant, Sturdy and Durable. Smooth Surface does not harm hands. Practical Number Keyring: Metal Key Tags with Key Rings can easily Organize or Sort Keys, Home Keys, Dorm Keys, Car Keys, Luggage, etc. Also useful as Labels to Number Things for Identification. Size: The Keychain Numbers are Blue, The Tag's Diameter is 3cm and The Steel Ring's Diameter is 2.8cm, The Key Tag's Material is Durable Metal, and the Digital Number is Clear for Easy Identification. Wide Application: Numbered Key Fob is Suitable for Hotel and Guest Use, Gym, Indoor and Outdoor Pool, Warehouse, Restaurant, etc. Ideal for Luggage Storage and Identification of Items.