Looking for the ultimate way to keep oxygen out of your bottled brew? We recommend capping them with these specially designed, oxygen absorbing caps. They feature a special liner (seal) that keeps your brew from going stale through oxidation. It's plain, gold design is great for marking your beers as well, letting you know exactly what you are about to consume. Please note that these caps are designed for pry-off bottles only, and are applied using a bottle capper. Sold in packs of 144.