Our StuNLeY tumblers are 2x heat and cold resistant compared to other tumblers. These tumblers are double-wall, vacuum insulated, they can hold ice for up to 24 hours and keep hot drinks warm for up to 12 hours. These tumblers are a great gift idea, or perfect for personal use and with 9 color options you're sure to find the color that speaks to you. These tumblers are also powder coated with a matte finish to allow the engraved design to stand out. 
 
These tumblers are made from 18/8 gauge stainless steel (18% chromium/8% nickel) - also known as Type 304 Food Grade. Cleaning Instructions: To keep engraving pristine, please hand-wash only. Laser Etched Color: Silver.