4x6 Direct Thermal Shipping Labels,450/Roll, Compatible Zebra 2844 ZP-450 ZP-500 ZP-505 (4 Rolls) Size:4"x6", 450/Roll, 1" Core,4 Rolls ,with perforated line Self-adhesive just Peel & Stick Strong adhesive to corrugated boxes and envelope Compatible with Zebra / Eltron printer,Zebra 2844, Eltron 2844, Zebra ZP-450, ZP-500, ZP-505 Minimum application temperature: 50F; Service temperature range: 59F~+149F