Number Tags & Key Rings Set: 50 Pcs key tags made of plastic and 50 Pcs stainless steel rings, lightweight, wear-resistant, strong and durable. Suitable for organizing and sorting keys, luggage, locker keys, etc. Premium Material: Numbered key tags are made of high-quality aluminum alloy, waterproof and rustproof, lightweight and wear-resistant, sturdy and durable. Smooth surface will not hurt your hand. Practical Number Keyring: Metal key tags with key rings can effectively organize or sort your keys, cards, dormitory keys, locker keys, luggage, etc. Also useful as labels to mark or number items for identification. Bright Colors: The keychain numbers are available in red or green. The tag's diameter is 3 cm and the steel ring's diameter is 2.8 cm. The key tag color is bright, and the digital number helps you identify it easily. Wide Application: Numbered key fob is suitable for hotel guest rooms, gyms, offices, indoor and outdoor pools, warehouses, restaurants, clubs, etc. A good helper for luggage storage and classification of items.