1.[What's Included?] Get a pack of 6 - 33 ounce swing top glass bottles featuring airtight swing top caps. Enjoy the freshness of your homemade brews and carbonated drinks thanks to the our airtight design, ensuring every sip is as delightful as the first. 2.[Preserve Freshness and Flavor] Our Flip Top Glass Bottles are a perfect choice for home brewers and fermenters. Our glass bottles with airtight lid maintains the freshness and flavor of your homemade beverages. Say hello to consistently great-tasting drinks every time you pop the top. 3.[Easy To Clean and Reusable] The easy-pouring spout makes these swing top containers convenient to use. They are dishwasher or simply hand wash with a bottle brush. Save money and promote sustainability by reducing the need for disposable containers. 4.[Functional Design] Our 1000ml glass swing top bottle are manufactured with a stronger, thicker glass than other glass bottles. Our flip top bottles are made of heat resistant, USDA certified food grade glass. They have gone through a series of quality control tests to meet all required product standards.