Ready To Use 20oz Sublimation Tumbler Blanks We sell 20oz sublimation tumbler blanks that are ready to use and be customised according to the need and requirements of the customer. Because we are a Business that caters to wholesale needs of our clients mostly, we make sure to provide quality 20oz sublimation tumbler bulk to our customers that are ready to be customized further.  We know tumblers can be used as special gifts after being decorated with sublimation or logo designs of your own choosing. This is why we provide blank tumblers that can easily be sublimated. They are in equal diameters at the top and bottom and come with insulation to keep the temperature of your beverages constant.