Stainless Steel Can Coolers fit well on standard 12oz cans, beers, sodas, energy drinks, and similar size water bottles. Just 3 steps to operate the can cooler. Firstly, twist off the cup lid. Then, put into your favorite chilled beverage. Finally, tighten the lid back on. Stainless steel is safe 304 food grade. Ideal for use at the beach, camping, pool parties, backyard events, and outdoor parties! 3 3/32" D x 4 17/32" H