Come and see our amazing products. This Travel mugs are made of 304 stainless steel. Electro polished inside.Ensure your cups unbreakable, rust resistant , sweat free ,Non-toxic and harmless.giving you a clean tasting drink every time. 20oz travel Mug lightweight and compact feel make it easy to fit into most car cup holders. Carry around your beverages whether home, office, picnic, hiking or camping adventures. Pls confirm with us about the packing info, stock color and exact production time before placing your order.