Zojirushi Set of 2 Stainless Steel Mugs, SA48 Black & SA48 Cinnamon Gold, 16oz One SM-SA48 Black and One SM-SA48NM Stainless Steel Mug are included. Stainless steel vacuum insulation keeps beverages hot or cold for hours Lightweight design for added portability Stopper disassembles for thorough cleaning Made of BPA-free plastic and stainless steel