Set of 4 air bubble locks for fermentation with 4 stoppers + 10 eyelets

★ A More Complete Brewing Kit – If you need a fermentation system that can be used for a long time and don't want to buy them often, but also want a good price, then get the Zazolyne Airlock Combo. You will receive 4 bubble locks + 4 #6 stoppers + 10 grommets. Simply drill a 1.9 cm hole for the grommets or a 2.5 cm hole for the stopper in the lid (plastic bucket, Mason jar lid, etc.), and it will work perfectly in your project. ★ Upgraded High-Transparency Bubble Bucket – Unlike other normal S-shaped locks on the market, our fermentation air lock is made of a healthier, harder (not brittle) and more transparent material. (Clearly see the entire fermentation process.) Apply slow pressure to the airlock when inserting it into the stopper/drilled lid, and they will last a long time because they are a premium transparent airlock. ★ Improved, Easy-to-Put-On and Remove Cap – This new type of dust cap features a zigzag design on the surface and won't slip when opened. There are three loops inside; gently press to close with a snap, then pull up and twist to open. The lid doesn't need to be pierced as there's a gap around it, allowing gas to escape. ★ Reusable and Wide Application – These bubble lock sets are strong and reusable. They can last a long time. Simply place them in your sanitizer and reuse them many times for various occasions (kimchi, kombucha, winemaking). Research shows that fermentation helps make food easier to digest and often increases its nutritional value. ★ Excellent After-Sales Service – We offer a 1-year warranty to every customer. All items are tested before being shipped to Amazon. We encourage you to inform us in advance of any damage or missing items during transit. Need a simpler, more reliable fermentation project? Click on your cart now and buy them from home.