Made of glass and food-safe plastic. The glass version is transparent so you can control the amount of coffee inside. - Prevents oxidation of the coffee and extends its shelf life by as much as 50%. - Integrated pump - You simply turn the lid back and forth to remove air from the inside without the need for additional pumps. - Vacuum lock indicator - When the vacuum is locked, a green ring appears on the display. - Easy release button - To unlock the container, simply press a button. - Airtight silicone seal - Stops air, moisture and odours. - Also ideal for storing loose foods such as puff pastry, nuts, muesli, biscuits, cereals or sweets. However, do not store ground substances such as ground coffee, flour, etc.. This could clog the vacuum lid and prevent proper vacuum sealing. Do not place Atmos upside down while storing contents in it. - Dimensions: Diameter 11 cm, height 8.3 cm. - Hand wash only. Atmos is not dishwasher safe.