Keep fresh: The silicone crown caps keep your drinks fresh for a long time and protect them from loss of carbon dioxide. Airtight hygienic seal, keeps your drink fresh and insects stay out. This means the drink stays fresh and tasty for longer. Airtight hygienic seal, keeps your drink fresh and insects stay out. Easy to clean: Our silicone beer mats are dimensionally stable, easy to clean and of course dishwasher safe. The reusable, dishwasher-safe seal means the bottle is sealed airtight. The closure set is particularly suitable for parties. The bottle, whether it is juice, soft drink or beer, is put down and no one knows who the drink belongs to. 6 different colors make it easier. You remember the color of your silicone beer mat. This means you can't lose the bottle while dancing. Also for home brewed beer Easy to use and reuse: The material is silicone, safe, durable, elastic, lightweight, reusable, easy to cover and take off. As a bottle marker, perfect for any home bar, (birthday) party, barbecue evening or just a cozy get-together or after-work beer.