Come and see our amazing products. This Stainless Tumblers is made of 304 18/8 food grade stainless steel. No metallic taste, dishwasher safe. The lids uses BPA FREE plastic which is completely nontoxic. Double-walled stainless steel body ensure that it is incredibly good at temperature protection. Under normal temperature, the insulated coffee cup keep your water hot for 3 hours and cold for 9 hours. Pls confirm with us about the packing info, stock color and exact production time before placing your order.