Best Dad Ever Custom Baby Photo Retro Tumbler, Personalized Photo Tumbler for Dad, Father s Day Gift, Dad Coffee Cup, First Time Daddy GiftEach of our Stainless Steel Tumbler is custom hand made of SUS 304 body and premium material lid. The only drink lid that uses the power of magnets to keep your water, beer, or favorite drink on lock. A durable coat of color wont fade, peel, or crack through extended field use and also provide additional grip. The double wall insulated tumbler with a vacuum between helps your drink to keep its temperature from 3 to 4 hours.