Add your custom artwork one of our 30 oz tumblers. School logos, wedding party, company logo, etc. You can provide your own artwork for a custom deep etch on this beautiful barware. Sure to be a custom seller for your business. Artwork needs to be provided in a high quality format. Vector files (.cdr, .png, .svg, .pdf, .ai, .eps) are preferred but we can work with a high quality .jpg and .bmp also. 30 oz. Stainless Steel Polar Camel Tumblers features double-wall vacuum insulation with a clear lid. The mug has a narrower bottom to fit most standard cup holders. It is 2X heat & cold resistant compared to a normal tumblers. Polar Camels are made from 18/8 gauge stainless steel (18% chromium/8% nickel) - also known as Type 304 Food Grade. We DO NOT use vinyl, decals, or wraps on these tumblers! Each tumbler is precision laser etched. Each is powder-coated for extreme durability. Engraving is permanent, but it is not recommended for dishwasher use. Please hand wash.