Swigs triple insulation technology keeps your slim can beverages cold for up to 12 hours. Simply push the can down into the cooler, pop the top, and enjoy. Then twist off the top ring to remove your empty can and repeat when you're ready for your next drink. Fits most 12oz slim/skinny cans. They are dishwasher safe, have a non-slip silicone base, and are cupholder friendly.