25 Sheets Sublimation Paper A4 8.5 by 11 inches Pack of 25 sheets of submlimation paper, A4 size, 8.5 by 11 inches The process of sublimation is where you transfer an image from a piece of paper to a "sublimation blank" (such as a mug, iPhone case, tile, etc.) using pressure and heat; sublimation paper is used to print the initial image There are many regular inkjet printers that will work for printing, but you must install them with special sublimation inks; this paper is formulated for use with the Ricoh SG 3110DN printer and SubliJet R sublimation inks This sublimation paper is only printable on the bright white side Suitable for Ricoh gel sublimation inks