DescriptionThis is high strength outdoor water bottle, emergency life bottle, EDC first-aid equipment. Using superhard 6061 aviation aluminum, airtight and anti pressure. The key buckle design is easy to carry and convenient to hang.Features- Color: Black. - Material: Aluminium Alloy. - Size: 2.05 x 2.3 x 5.1cm. - This is high strength outdoor water bottle, emergency life bottle, EDC first-aid equipment. - CNC cutting technology, military grade three hardness of anodic oxidation, which is waterproof. - Using superhard aluminum, airtight and anti pressure. - The key buckle design is easy to carry and convenient to hang. Body thread design, which is anti-skid. - Suitable for storage of small tools, matches, pills, flint, hearing aids, batteries, tablets, vitamins, capsules, money, etc.