Number Tags & Key Rings Set: 50 pcs key tags and 50 pcs stainless steel rings, anti-wear and durable. Suitable for organizing and sorting keys, luggage, dorm keys, 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 organize or sort keys, dormitory keys, car keys, luggage, etc. Also useful as labels to 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 for easy identification. Wide Application: Numbered key fob is suitable for hotel and guest management, gym, indoor and outdoor pool, warehouse, restaurant, school, etc. Ideal for luggage storage and identification of items.