& OOTDTYMaterial: Food Grade SiliconeColor: Milk White ColorMode: 03/04/05/06/07/08/09/10/11This silicone plug is different from foam silicone, it is a real food grade silicone, translucent, flexible, temperature resistant from -60°C to 250°C Do not use it in too high temperatureClork 3 can be used with wine bottle and coke bottleClork 5 fits with 3L hydrochloric acid bottleClork 10 can be used with purified water Buckets (bucket inner diameter 45mm)Clork 11 can be used with purified water buckets (bucket inner diameter 48mm)Hole diameter: 8mm Size: see picture No retail package Quantity: 2 piecesNote: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:2 pcs. x Silicone Stopper Rubber Stopper with Hole Airlock Valve Bubbler Wine Brew