1. Suitable for 12oz Cans and BottlesThe cooler is suitable for ultra-thin 12oz beer, soda cans, spiked sodas and energy drinks. The built-in beer opener makes your beer drinking more convenient and enjoyable. 2. KEEP YOUR BEVERAGE ICE COLDVacuum-insulated double-wall stainless steel construction keeps your drink 20 times cooler than standard neoprene can coolers and ensures your last sip is as good as your first. 3. Easy to UseThe gasket design easily holds the tank cooler in place with a simple quarter turn. No more sweaty palms from holding cans or leaving unpleasant condensation rings on expensive furniture. 4. PARTY FAVORITE AND PERFECT GIFT CHOICEThe Ursa can be widely used for parties, beach or BBQ, or camping expeditions. For those who love to drink cold, this mug cooler can be the perfect gift.