These standard Dymo D1 tapes are suitable for use on smooth and flat surfaces. If you want to use the tapes on a curved surface, such as power cords, use the D1 flexible nylon tape. For rough surfaces, the D1 permanent polyesther tape is most suitable. The standard Dymo D1 tape is suitable for almost all Dymo LabelManagers and Dymo LabelPoint tape printers. Dymo D1 tapes are not suitable for tape printers of other brands, nor are they suitable for LetraTag and Rhino printers. A 9mm wide tape allows you to apply very fine lettering. Keep in mind the margins along the edges of the tape are required for the printer, the text size will be at most 6mm. The tape length 7m. This tape is white with a blue print.