- Opaque labels for QR codes, on A4 sheets, self-adhesive\n- Ideal for mobile tagging of URLs, telephone numbers, addresses and text\n- Can be affixed to product packages, catalogues, etc., also for coloured subsurfaces\n- Fully opaque - nothing shows through, easily read by scanners\n- Environmentally friendly: high-quality, chlorine-free bleached special paper, PEFC-certified, solvent-free adhesive; labels are 100% recyclable, dispose of as for waste paper\n- Excellent printing results on all laser printers, inkjet printers, copiers, colour laser printers and colour copiers\n- Trouble-free processing thanks to all-round protective edge and optimum flatness