Number Tags & Key Rings Set: 50 pcs key tags and 50 pcs stainless steel rings, wear-resistant and durable. Suitable for labeling and sorting keys, luggage, car keys, etc. Material: Numbered key tags are made of high-quality aluminum 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 label or organize keys, home keys, dormitory keys, office keys, luggage, etc. Also useful as labels to mark or number items for identification. Size: 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 has a smooth finish, and the digital number allows easy identification. Wide application: Numbered key fobs are suitable for hotels, gyms, indoor and outdoor pools, warehouses, restaurants, etc. Ideal for luggage storage and item identification.