Check out our 12oz double wall 18/8 stainless steel thermal tumblers! These Shunk Gulley 30A tumblers have copper vacuum insulation, a clear push-on lid, and powder coated finish. Our CeCe brand 12 oz stainless tumblers are available in mint, and will keep your drinks cold for 24hrs, or hot for 8hrs. Not dishwasher safe, please hand wash.