hot ink rolls: for printing date code and batch numbers. With excellent characteristics, as low price, easy use, legible etc Hot Ink RollersSubstrates: PET, PE, PP, leather, paper etc.Roller diameter: 35mm, 36mm, 40mm, 45mm, 48mmRoller width: 10mm, 16mm, 32mm, 40mm, 60mmColor: black, white, blue, red, yellow, orange etcOther specifications and colors can be ordered. Hot Ink Rollers