Athena United 4" x 6" Thermal Direct Perforated Shipping Labels Eltron Zebra 2844 ZP-450 ZP-500 ZP-505 (450 x 1 Roll) Compatible with most 4"+ wide Datamax, Zebra, Sato, and other standard direct thermal printers. High quality direct thermal material Self-adhesive just Peel & Stick Fits Zebra 2844, Eltron 2844, Zebra ZP-450, ZP-500, ZP-505 Standard 1" core