Features: Stored Fresh, Vacuum Stopper, Food Grade, Durable, Taste Vacuum Stoppers Are Specially Designed To Be Used Alongside A Genuine Wine Saver Pump. these Stoppers Allow For An Airtight Vacuum That Preserves The Flavor And Taste Of Wine For Up To A Week the Stoppers Are Universal For All Bottles And Are Simply Inserted Into The Neck Of An Opened Wine Bottle. Although They Are Most Effective When Used With A Genuine, They Can Also Be Used As A Traditional Stopper, Keeping Additional Air Outstoppers Are Constructed From High-quality, Food Grade Rubber That Is Dishwasher Safe. they Are Extremely Durable And Will Provide Years Of Use. The Cap On The Top Of The Stoppers Can Be Removed In Order To Aid Cleaning Included: 8pcs Vacuum Stoppers