Material:This bottle cap is made of high quality silicone. It is environmentally friendly, waterproof, durable, safe and non-toxic. The silicone construction seals the bottle airtight and is easy to remove. It can also be used for microwave, oven, freezer and dishwasher. Package including: 6 x silicone bottle stoppersEASY TO USE - Because this bottle stopper is made of high quality silicone material for food, it is flexible, durable and fresh. It is suitable for beer bottles, wine cooking, cola bottles, etc. It is easy to use. Simply open it with a single pull. Flexibility and air tightness: this silicone bottle stopper is very present. Thanks to its flexibility and air tightness, the wine or oil and other liquids remain in the bottle. It can stop pollution and keep liquids fresh, not like metal and wood. Keep away from sharp objects. Applications: This bottle stopper can be used to keep wine, beer and whisky fresh in the bottle, and it can also provide an airtight seal that is leak-proof. Wine and other drinks can be easily preserved so that they do not deteriorate.Products from KJ's store