Package List 3 x airlock 3 x stopper Characteristics -Product Info:Fermentation -Size:(S)17.00X5.20X2.00cm/6.68X2.04X0.79in(whole size); 4.60X4.60X3.60cm/1.81X1.81X1.41in(stopper) -Size:(L)18.00X5.20X2.00cm/7.07X2.04X0.79in(whole size); 3.30X3.30X2.70cm/1.30X1.30X1.06in(stopper) -Material:Silicone, PP -Stopper bottom diameter: 8mm Wine Making Supplies - The S-shaped airlocks are easy to operate and clean, a great wine fermentation tool for home use Airlock Beer. - The wine fermentation airlocks has a lid to avoid dirt falling into the bottle, very practical Stopper Beer Fermentation. - Made of stable material, these fermentation airlocks are not easy to break or deform, and are safe, and clean. - Widely used for self-brewed wine and beer, white wine, honey wine fermentation, red wine secondary fermentation home airlock brewing. - ColorTransparent - The clear structure design of the airlocks allows you to see the inside clearly, practical for the observation during the fermentation process Airlock for Fermentation.Goods DescriptionAirlock with Stopper The products are airlocks, used for exhausting secondary fermentation, used for self-brewed wine and beer.Stoppers for Wine Bottles Airlocks can be used for a variety of purposes such as juice fermentation, white wine, honey wine fermentation, to provide your family with convenience Replacement airlocks--the wine fermentation airlocks has a lid to avoid dirt falling into the bottle, very practical,Beer Fermentation Airlocks Home brew accessory--widely used for self-brewed wine and beer, white wine, honey wine fermentation, red wine secondary fermentation,Wine Non-return Valves S-shaped airlock--made of material, not easy to break, safe to use, which can serve you well,Brew One-way Valves Stopper beer fermentation--the clear structure design of the airlocks allows you to see the inside clearly, practical for the observation during the fermentation process,Fermentation Supplies Non-return valves--suitable for pure juice fermentation, such as white grapes, mead fermentation, secondary fermentation of red wine, etc,s- Shape Airlock ASIN B0GVPFJVS3 Item Weight 3.36 ounces Manufacturer SECFOU Item model number IS20DHNEDD37260AUWX6YMS Product Dimensions 7.09 x 2.05 x 0.79 inches