Ello Hammertime Vacuum-Insulated Stainless Steel Travel Mug - 18 oz Keep coffee hotter for longer with Ello Hammertime travel mug. New 100% leak-proof slider lid for easy open/close Vacuum insulation keeps beverages hot for up to 5 hours and cold for up to 10 Certified BPA/BPS, Phthalates and PVC free Hand wash tumbler recommended. Lid is dishwasher safe Do not microwave Keep coffee hotter for longer with Ello Hammertime travel mug. New 100% leak-proof slider lid for easy open/close Vacuum insulation keeps beverages hot for up to 5 hours and cold for up to 10 Certified BPA/BPS, Phthalates and PVC free Care and Cleaning: All parts top rack dishwasher safe, do not microwave