Sublimation Coated:the Frosted Glass mug are ready for Sublimation Printing,Our white mug use high quality porcelain to get a strong and smooth surface drinking mugs First you could print high quality Digital image (any you want) with sublimation ink and sublimation paper; second stick the printed paper on the mug with high resistance tape; Then transfer on mug heat transfer machine. These frosted glass mugs can be personalized with your business logo or any graphic of your choice,also perfect for customer gifts or company gifts.