New Silicon Rubber Grolsch EZ Cap Swing Top Bottle Washer Gasket Red/white 25pcs (Red) Made from food grade Silicon rubber Flip top bottle GASKET for GROLSCH, EZ-CAP and other flip top beverage bottles Good material, Will not deform, crack, or leak. Upgrade sharp design, More Tighter Provided 2 color White and Red for your choose. 25pcs/lot & 100pcs/lot.