1000 Labels per Stack, 1 Stack. Label size: 4"x6", with perforated line. Material: direct thermal labels. Strong adhesive to corrugated boxes and envelopeStrong adhesive to corrugated boxes and envelope Compatible with Zebra, Brother, Fargo, Elton, Datamax, Sato, Intermec, NEX , Dymo Labelwriter 4XL, Rollo, MUNBYN, MFlabel, Comer,Polono Labels, iDRPT, Jiose, K Comer, LabelRange, OFFNOVA, and other direct thermal printers without the hassle of sheets waste, or jams.