Complete Fermentation Set the package includes 2 pieces of glass carboy 2 drilled and 2 undrilled silicone stoppers and 2 brewing airlock The complete set can meet your basic brewing needs Large Size and Capacity the capacity of fermentation container is about 3 gallons which can meet your different storage and fermentation requirements The stoppers are suitable for the mouth of a large glass bottle Dependable Material the carboy is designed with quality transparent glass which is durable and resistant to scratches and wear At the same time the stopper is made of quality silicone the airlock can be inserted into the hole and the sealing is very good Practical and Convenient the overall air tightness of fermentation jar is good providing you with a very comfortable brewing experience It can also be equipped with a non porous silicone stopper for liquid storage and the transparent design is also a very beautiful decoration in the kitchen or dining room Versatile Uses this carboy is suitable for fermenting various beverages such as beer wine cider mead and more it will not cause odor and can also be applied in home kitchens and restaurants