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 aluminum alloy, waterproof and rustproof, wear-resistant, sturdy and durable. Smooth surface will not hurt hands. Practical Number Keyring: Metal key tags with key rings can easily organize or sort keys, lockers, dormitory 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 3 cm, and the steel ring's diameter is 2.8 cm. The key tag is lightweight and the digital number allows easy identification. Wide Application: Numbered key fobs are suitable for hotels, gyms, schools, indoor and outdoor pools, warehouses, restaurants, and more. Ideal for luggage storage and item identification.