The unique 3-in-1 item can be used as a travel tumbler, can coolie or bottle insulator. Dual wall stainless steel with a copper-lined vacuum insulation keeps drinks hot or cold for hours. Features a clear screw-on lid with a slide closure over the drink-through opening. To use as a can/bottle coolie, simply add the rubberized black ring. Capable of holding most 12-oz cans and 12-oz bottled beverages. Size: (12 ounces).