This stainless steel bullet tumbler is perfect for your hot and cold beverages. These tumblers are double-walled to keep beverages cold or warm for hours, and made of high quality 304 stainless steel. I do not use epoxy on my mugs or tumblers. The images are heat and pressure transferred into the surface itself. It will not crack, peel, or fade if left in a hot car or frozen ski bag. Each tumbler comes with Care instructions, easy pour screw on cap, and gold bullet lid.