The Novo Combo 20 oz Vacuum Insulated Stainless Steel Mug and Screw-On 12 oz Can Cooler offers a dual-purpose design with a 20 oz mug featuring an ergonomic handle, color matched straw and versatile lid for left- or right-handed use. Plus a 12 oz screw-off bottom that functions as a can cooler or snack container. Made with double-wall stainless steel and copper lining to keep beverages hot for up to 6 hours and cold for up to 12 hours. BPA-free and FDA-certified. Hand wash only.