Brew Airlock Kit, 6 Airlocks and 12 Sealing Rings, Plastic Wine Airlock for Fermenting, Beer, Wine Releases carbon dioxide and can be used in the fermentation of wine, beer, and dairy alcohol; helps prevent oxidation. [Good Airtightness] The fermentation airlock provides reliable airtight sealing, supporting effective fermentation by isolating outside air and preventing oxidation. Automatically vents gas at room temperature without manual intervention. [Easy to Put On and Remove] This dust cap features a textured surface for improved grip and includes three internal buckles. Gently press down to secure, then twist and pull up to remove. The lid does not require drilling, as a built-in gap allows gas to escape safely. [Reusable and Versatile] These airlocks are durable and reusable for long-term use. Clean with standard disinfectants and reuse multiple times. Suitable for various fermentation applications including beer, wine, sauerkraut, cider, fruit wine, rice wine, vegetables such as carrots and ginger, kombucha, and other home brewing projects. Ideal for primary or secondary fermentation, including white grape, red wine, and mead fermentation. Color: Transparent + Red + Black Material: PP Size: 17 cm Package Contents: 6 x Airlocks 12 x Sealing Rings Note: Light reflection and differences in display screens may cause slight variations in color. Measurement allowance is +/- 1-3 cm.