Ice-cold drinks come in different shapes and sizes, so designing the Load-and-Lock™ Slim Can Gasket only made sense. It's an easy add-on to your Colster®, prepared to lock in all slim, 12 oz. bottles and cans - like your midday energy drink - for refreshing, no-slip drinking. Just twist off the standard gasket on your Colster, drop in your slim can, and screw the new gasket in its place. Then toss it all in the dishwasher when you're done.