The G. Francis Swing Top Caps offer a convenient and reliable capping option for sealing your homebrew. Alternative caps and cappers are cumbersome and leave much more room for error. Save time and money by keeping a 6-pack or 12-pack of replacement caps on hand for refilling your bottles again and again. Made of polypropylene with a red rubber seal and stainless steel hinge, these quality caps are easy to wash with soap and warm water and are built to last. The spill-resistant design securely seals around the lip of your grolsch-style or EZ-cap bottles and growlers so your brew maintains its freshness. Seal batches of brew again and again with the reusable, classic style G. Francis Swing Top Caps. WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.