B851 Inch BENTSAI EB21B Original Water Based Ink Cartridge Replacement for B30 B35 B80 B85 Handheld Printer, 4 Packs, Black Print on: EB21s can print on water absorbing and semi porous materials, including: paper, cloth, carton, wood, etc. Condition: EB21s is aqueous ink. It normally takes a few seconds for the ink to dry but can take longer depending on application and environment. When the machine prompts the ink is low and ask to add ink, you could