With the original Brother M-K531 tape cassette you can print clear, razor-sharp and perfectly readable labels. The special feature of this plastic ribbon is that the text is printed on the ribbon using direct thermal printing. The non-laminated M-K531 label tape with black writing on a blue background is versatile for indoor use.It is a perfect organization tool that you can use to label your folders, sockets, containers and much more at home. For outdoor or more extreme conditions, you can choose from Brother's laminated TZe labels for particularly durable and resilient labels. M tape cassettes are quick and easy to install and are available in a variety of widths and colors. This means you can fulfill all labeling jobs with your P-touch device.