Chef's Star 16 oz Stainless Steel Airtight Canister Coffee Vault with Built-in CO2 Gas Vent Valve and Date Tracking Wheel for Coffee Beans and Coffee Grounds Grade-A Quality: Premium Quality Stainless Steel Airtight Vacuum Sealed Coffee Canister Set. Enjoy Fresh Hot Coffee From Your Coffee Vault . Vent Valve: Coffee Storage Container Airtight Built-In One Way C02 Gas Vent Valve Prevents Your Coffee From Losing Flavor. Always Fresh: Built-In Date Wheel  Located On The Lid Allows You To Keep Track Of The Freshness Of Your Coffee Beans & Grounded Coffee. Storage Space: More Than Enough Coffee Storage Space For Your Favorite Grounded Coffee Or Coffee Beans. Customer Support: We At Chef's Star Offer Not Only Top Grade-A Quality Products But Also Provide Top Of The Line Customer Service Along With Our 1-Year No Questions Asked Warranty Policy Which You Won't Get With Other Brands.