Stainless steel material: healthy material, high hardness, light weight, corrosion resistance, mini and compact, unique design is more fashionable.Mini Size and Weight: 0.23oz (6.8g) / Inner Diameter: 8.3mm (0.52in) / Inner Length: 22mm (0.87in). Please confirm if this pill chain is suitable for your pills before purchasing.KEEP YOUR PILLS SAFE: The inner wall of the spiral and its O-ring seal water resistance, no need to worry about wet accidentally, suitable for storing medicine or small items.Easy to Carry: The keychain pill buckle has an extra key ring, which can be easily attached to keychains, bags, golf bags, belt , and used as a zipper pull for jackets. Suitable for water park, fishing and camping.Material: Stainless steelcolour: SilverPackage Contents: 2 x Pill Box KeychainOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.