This 40oz Resin Coated Stainless Steel Tumbler is the perfect blend of style and functionality. It is an insulated tumbler with double walls and features beautiful swirls of nearly every color of the rainbow. The design on this resin tumbler makes it look like it's from another planet! While it will be great as a Starbucks Tumbler, you can fill this beauty with any java you see fit. This is not a tumbler wrap, it was designed using a combination of clear resin and multiple colors of alcohol inks. I turned this tumbler over 6 hours on the first cycle to embed the pattern. I then repeated the process using only clear resin for another 6 hours to give this tumbler as smooth of a finish as possible. It's just stunning. There is no other tumbler on the planet like this. I've also included a metal straw, which fits into the drink hole. Or if you prefer, use this unique tumbler without a straw. This 20oz tumbler is not only sleek and stylish but also incredibly durable thanks to the stainless steel construction. The resin coating adds a unique touch, making each tumbler one-of-a-kind. Whether you're on the go or enjoying a relaxing day at home, this tumbler is the ideal companion for keeping your favorite beverages at the perfect temperature. A great mom tumbler or teacher tumbler, stand out from the crowd with this trendy and practical tumbler! This tumbler should only be hand-washed with warm water and mild soap. DO NOT wash this in hot water dishwasher.