These aluminum numbered tags are versatile and perfect for organization and classification, suitable for food labels, bottles, keychains, luggage, lockers, etc. It is also suitable for dormitories, restaurants, swimming pools, supermarkets, clubs, hotels, fitness centers, and other places.SpecificationColor: YellowMaterial: Aluminum AlloyTag Thickness: 1.3 mm / 0.05 inchTag Diameter: 3 cm / 1.18 inchRing Thickness: 2 mm / 0.08 inchRing Inner Diameter: 2.3 cm / 0.91 inchRing Outer Diameter: 2.8 cm / 1.1 inchTotal length: 6 cm / 2.36 inchPackage List: 100 Pcs x Number TagsAdvantage:1. The numbered key tags are made of premium aluminum alloy material, which is wear-resistant and waterproof, not easy to rust or fade, corrosion-resistant and oxidized, with a long service life, and can be reused.2.