1PCS Home Brew Wine Stoppers Silicone Plug with 8mm Hole for Airlock Valve Bubbler Fermentation Exhaust Valve Silicone Rubber Plug

1. Silicone stopper, compatible with standard fermentation airlock valves 2. Made of silicone, suitable for wine and beer brewing 3. Designed specifically for home fermentation equipment, for venting and sealing 4. The flexible design fits fermentation vessels commonly used in home brewing projects 5. A practical accessory for home winemaking, beer brewing, and fermentation processes