Features: Durable: Made of high-quality aluminum alloy, the exterior and interior are anodized and colored, durable and rust-proof. Moisture-proof sealing: The sealing rubber ring is embedded in the design, which is waterproof and moisture-proof, and meets the needs of portable storage of drugs. Easy to carry: The thickness is only the size of a coin, it can be put in a pocket or bag, compact and portable. Single Room Design: Easily holds your daily vitamins, aspirin, supplements, cod liver oil or other emergency pills. Multipurpose: Not only a for pill box, but also can hold jewelry, earrings, necklaces, earplugs, USB sticks, cash, coins and other small items. Great for travel, camping, hiking, outdoor survival. Specifications: Material: Aluminum Alloy Color: Black/ for Grey Type: Small/ Medium/ Large Small Outer Size: Approx. 2.95x2.2cm/1.16x0.87inch Small Inner Size: Approx. 2.5x1.6cm/0.98x0.63inch Medium External Size: Approx. 4.95x2.2cm/1.95x0.87inch Medium Internal Size: Approx. 4.5x1.7cm/1.77x0.67inch Large External Size: Approx. 7x2.2cm/2.75x0.87inch Large Internal Size: Approx. 6.4x1.7cm/2.52x0.67inch Package Includes: 1x Sealing Bottle note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.