This product contains 10 rolls of DYMO D1 labels. Each label measures 19mm x 7m and features black print on a white background. These labels are compatible with various Dymo Labelmanager series printers, including the Labelmanager 420 Series, Labelmanager 420 P + SoftCase, Labelmanager 300, Labelmanager PC-2, and Labelmanager 5500. The tape is self-adhesive for easy application.