Wanted to give a shout out to KatyDID's customer service. I purchased one of their tumblers while visiting my brother. Love the tumbler!! It's one of the 40 oz. perfect size and weight (even when it's full). Keeps ice for 24 hours or longer. Take it everywhere I go. I even covered it with all my favorite stickers!! Had a small issue after using it for a while and when I contacted the company they replaced the tumbler at no charge. The customer service is quick and awesome and I recommend purchasing one of their tumblers if you're looking for a tumbler! Thank you KatyDID!!