These lids are the 48mm size for screw cap bottles only. If you have a crown cap lid these will not work for your bottles. We do have those available, however, they are 56mm - not 48mm like these screw cap size. These convenient reusable caps work perfect to help avoid splashes and spills while pouring those heavy bottles into crocks or refrigerator stands. They can be used again and again. Simply handle them with care while putting them on and off and rinse them after each use. At this price, it's great to always have an extra few on hand.