... A4 size,100sheets per pack for coated ceramic mug,plate,puzzle,metal board A4 SIZE mug heat transfer paper used for sublimation printingA4 ... .7cm; MOQ: 100 sheets;100 sheets per pack.for coated ceramic mug, plate, puzzle, metal board, mouse pad and <40% cotton light ... , 10-30 seconds. Sample trial is recommended before mass production. mug sublimation printing heat transfer paper