This portable ashtray can be adjusted to your preferred length depending on the day's mood. The O-ring and screw completely shut out odors and ash leakage. Assemble the parts by screwing them clockwise. To dispose of the cigarette butts, unscrew and discard. Also, since the material is aluminum, it is light and easy to carry. Although unused, there is some color unevenness on the inside joints of this item. The box has some damage. Also, please note that the box does not have a lid. ◾️Size Diameter 3.0cm x Height Max 12.0cm / Min 3.0cm Inner diameter 2.2cm Weight: 96g when fully extended Aluminum machined GALLOX NC ASHTRAY Admiral Sangyo Co., Ltd.