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 does not harm hands. Practical Number Keyring: Metal key tags with key rings can easily organize or sort keys, dormitory keys, garage 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 for 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 identification of items.