Widely Applications: The B21 paper can be used for organization labels for kitchen and household storage, as well as price barcodes, mailing, or address labels. It is a good label helper for kitchens, offices, stores, warehouses, etc, especially very suitable for commercial supermarket retail applications. Easy to Use: Tear off the label paper according to the prompts, and put it into the B21 or B3S printer machine, please face down the paper, and pull the paper out of the machine properly, then can print.Note: Please make the printing side face the print head and fix the plates to avoid printing distortion. High Quality Labels: Professional material, better quality, strong adhesiveness, clear printing, do not fade, waterproof, oil-proof, tear-proof, anti-Scratch. It can be easily removed from the item, not leave glue and other residues. Quantity and Size: Each roll of B21 clear label includes 230 stickers. One sticker measures 40*30mm (1.57"x1.18"), perfect size for any organization bottles, jars, files, price and barcodes for home and business. NOTE: IT IS NOT FOR SHIPPING LABELS. B21 Label Tape: Self-adhesive thermal paper, specially compatible for NiiMbot B21 ad B3S label printer, printing without ink or ribbon, tear and paste, easy to use.