Details: The sizes are 12mmx2m, there are three packs, and the colors are Black on White. Applicable Machines: These are compatible with P12/P12PRO label makers. Inkless Printing: The label tapes are thermal transfer printing labels, no need to replace ink cartridges, easy to operate and environmentally friendly. Satin Ribbon Label Tape: 100% Polyethylene brazing. Soft, strong, and pleated for a DIY decorative gift box. Easily Connect with Smart App: The all-in-one Print Master app has a Bluetooth connection. Massive selection of label design materials, 1 second Bluetooth connection.