Material: made of metal, this pill box is made of aluminum alloy is strong and rust-proof, high quality aluminum alloy seal is moisture-proof and waterproof, each compartment can be independently detached and combined Free combination: 7 compartments with independent compartment design. You can freely combine them to meet your needs Small and light: the weight of a pill box is only 0.12kg. best for travel purse pocket, outdoor business trip a week of medicine do not have to worry, lightweight, quick access to medicine. Improved waterproof effect: This aluminum 7-compartment outdoor first aid medicine box is waterproof and moisture-proof, solving the trouble of loading medicine. Waterproof and Super Sealed: this pill case is airtight and watertight, its O-ring seal ensure 100% waterproof. No need to worry about accidental falls. This small pill holder is made of Stainless Steel, virtually indestructible ,securely protect medication. Even if it is immersed in water, the tablets can be kept dry and safe.You can carry some small pills in this medicine jar, emergency medicine, carry it with you, easy to use.