bubba 52 oz mug classic saaphire blue Dual-walled polyurethane (exterior & interior) with foam insulation (BPA free), and stainless steel exterior band Comes with a big bubba straw for easy hydration; Keeps cold beverages cold and hot beverages hot for hours Tough and durable construction featuring ergonomically designed handle with soft touch TPE grip 7" tall and 4" wide at the top; Stylish two toned colors Built in bottle opener under the handle