Culina Wine Bottle Stopper Caps. Set of 6. Air Stopping Wine Saver Sealing Plugs Prevents air from seeping through wine which deteriorates taste. Plug, seal and save unfinished bottles, preserve taste freshness. Waste no more! 6 pieces, so you can safely have a variety of cru going at once, perfect for events big and small. No leaks ever! Even when bottles lay sideways Professional grade quality, 3-ring rubber seal with embossed push button. results far exceed placing cork back inside their bottles Great results, paired with Culina Wine Saver Vacuum Pump (Sold Separately). Compatible with most brands' air pumps for your convenience 100% Culina Satisfaction Guarantee!