Sublimation Tumblers

What are sublimation tumblers? If you are not in the industry you may not know what I mean in this category. 

Sublimation Ink is Printed onto a special type of paper that is then placed on the tumbler carefully and taped down to be secure. Then with a heat press made specifically for cups, it is burned onto a tumbler with a special coating. In doing  this is makes it to where you cup is safe from cracking, peeling, or chipping.