Main material: sublimation ink and sponge Application: solid ink roll is used to offer ink for coding machines to print figures and letters. Technicals parameters: 1)Many colors: black, white, red, golden yellow, blue and so on. 2)Two types: gerneral type and high density type 3)Many sizes: 48*60,48*55,40*40,35*30,35*15,35*10 and so on.