About This One-Way Exhaust Valve:Each lid features a one-way exhaust valve designed to release CO₂ gas while minimizing air entry.This key design helps reduce oxidation and supports the preservation of coffee beans fresh,rich flavor.These airtight coffee canister cans offer a reliable solution for storing coffee beans Solid Walnut Wood Coffee Container Set:Our coffee bean storage container set features a solid American black walnut wood base,matching walnut wood funnel and walnut wood lids,metal frame,8 glass tubes,and 4 silicone pads Spacious Design:Our single dose coffee bean storage container tubes are made from borosilicate glass, holding up to 30g of whole beans per tube.The 1.45-inch wide opening accommodates larger coffee beans for smooth pouring Elegant Coffee Organizer:Stylish coffee bean storage tubes suitable for espresso & pour-over beans. Designed for coffee enthusiasts.Adds a touch of style to your space while organizing daily doses, helping make your brewing routine more enjoyable.A thoughtful gifts for coffee lovers Multipurpose Coffee Storage Container:The airtight coffee canister can be used to store coffee beans, tea,spices,and more.8 airtight container tubes help you arrange storage efficiently and keep your countertop organized Reliable Quality:Whether you enjoy coffee at home or prepare it professionally,our coffee containers are a reliable choice.We focus on creating a quality coffee storage experience for our customers Overview Brand : Gernshe Color : Walnut Material : Borosilicate Glass, Solid Walnut Wood Material Feature : Airtight, Non-Porous Capacity : 1 ounces