Sealed Coffee Bean Jar with Lid Dried Fruit Nuts Snack Candy Food Moisture-proof Storage Containers Cans Canister Feature: 1. One-way exhaust design 2. Preferred material, multi-function 3. The built-in silicone ring seals well 4. Large bottle mouth, easy to install and take out. 5. Coffee beans release carbon dioxide continuously after roasting. One-way exhaust valve on the cover,After the lid is closed, due to the difference in air pressure inside and outside, The one-way vent valve automatically removes the carbon dioxide produced by the coffee beans in the tank. At the same time, isolate oxygen and water vapor outside the tank,so that it cannot enter the tank to oxidize the coffee beans,Keep the coffee beans fresh. Specification: Product size: 17 * 10 * 10cm/6.7*3.9*39in Product packaging: Boxed Product material: metal PS silica gel Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.Package includes:1 X Coffee Bean Can