Features: Outdoor survival equipment sealed tanks for high-densities Waterproofed, outdoor, travel regular equipment. The sealed tanks is consist of good quality aluminum alloys, high hardness cylinder body, Waterproofed and more difficult to break. Both end of the sealed is opened, novel and practical. Used as keychains, backpacks pendants, light and no burden. Sealed tanks after oxidation treatments, environmental protecting and health, can store pills, capsules and other emergencies drugs. Specifications: Color:Four Elections Dimension:13.53cm/5.311.18in Component:Aluminum Alloys Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1pc Outdoor Waterproofed Container