The 16 oz travel tumbler is a great commuter's mug for coffee and tea drinkers alike. Clary Travel Mug is made of BPA free and non-toxic stainless steel material. Doubled walled and The 16 oz travel tumbler is a great commuter's mug for coffee and tea drinkers alike. Clary Travel Mug is made of BPA free and non-toxic stainless steel material. Doubled walled and vacuum sealed to retain your beverage temperatures keep hot up to 4 hours, cold up to 6 hours. Built-in cork bottom to prevent scratching and staining on the wood desk or glass table. Powder finished coating mug will be a perfect gift for Birthday, Christmas, Valentine’s Day. 3 days rush available upon request. Imprint drinkware only can be hand wash. BPA FREE, FDA certified