Teacher Mode Off - This tumbler is a 12 oz double wall 18/8 stainless steel copper coated, vacuum insulated travel tumbler with a powder coated finish that protects against chips and scratches. It is non-toxic and BPA-free. "Teacher Mode Off" appears in white text. Choose between a geode and a rose gold tumbler. All wine tumblers come with a clear lid. Hand washing of these tumblers is recommended for lasting results. This item is not dishwasher safe.