Features: You can put the tablet or matches, etc., can also be used as a key ornaments. Fully functional and very easy to carry, suitable for hunting, fishing, camping, adventure, outdoor life-saving and other outdoor activities or household. Name: Outdoor Aluminum Cartridge Keychain Material: Aluminum Alloy Size: bottle length 4.7CM diameter 1.7CM Color: Gold, Silver, Black, Blue, Red, Green, Purple