Looking for your next corporate giveaways? Make it this FDA Approved and BPA free 18 Oz. Stainless Steel Ceramic Tumbler. It features a stainless steel outer walls and a ceramic inner wall. This ceramic coating lessens the metallic taste after taste when you are enjoying either your hot or cold beverage. This tumbler is designed with a snap-on and spill-resistant lid that opens up by just sliding. Perfect for your cold or hot beverage! Not microwave safe, only hand washing is recommended.