Strap Stoppers - 4 Pack - StewMac Seriously...for literally $2-3.00 more you could go to the store and get a 4 pack of Grolsch beer. Why in the world would anyone buy these WITHOUT the beer? Even if you don't drink you could gift it to a friend who would be appreciative and like you even more in exchange for the rubber gaskets. StewMac is basically suckering people to buy them beer so they can get the gaskets off the bottle caps. BRILLIANT! Wished I thought of it first!