15 Ounce Texture Grip Porcelain Double Wall Thermal Coffee Tumbler - White 15oz. Ceramic Double Wall Insulated Thermal Tumbler. Textured outer base for a comfortable and secure grip. Porcelain Inner and Outer WallS. Enjoy up to 2 hrs Hot or 4 hrs Cold use. Press Fit Drink-Through Sip Lid seats down into the Ceramic Drinking Rim Mouth, with Silicone Gasket, and Slide Tab Closure. BPA Free. Dimensions: 2.75" base diameter, 3" wide, 7.75" height. Dishwasher Safe tumbler body. Hand wash recommended for the Lid assembly and for cup styles with graphic or silk screen imprint designs.