Come and see our amazing products. The mason jar tumbler is made of high-quality food-grade 304 stainless steel, and the surface has a coating suitable for sublimation. The high-quality materials do not fall off, are resistant to high temperatures. It's an excellent DIY gift as you can add any designs you want, really suitable as the customized gift for your friends, family and company gifts. Pls confirm further with us if any query about packing info, inventory status and time schedule.