Portable Waterproof Cigarette Case Enclosed Key Ring Round Cigarette Case (black The cigarette case is made of high quality aluminum alloy, strong and durable. Size: 32 mm/ 1.26 inch in diameter and 105 mm/ 4.13 inch in height. Good sealing, anti-fall and waterproof, always keep the mellow smell of the cigarette itself. Light weight, portable to carry.The keychain can be hung, convenient for use. It can store 8-10 pieces regular size cigarettes.