Epson LabelWorks Standard LK (Replaces LC) Tape Cartridge ~1/2" Blue on White (LK-4WLN) - For use with LabelWorks LW-300, LW-400, LW-600P and LW-700 label printers For use with LabelWorks LW-300, LW-400, LW-600P and LW-700 label printers Nearly 30' of tape (9 m) Features a split-back design for easy peeling Durable, hard plastic casing for safe storage Compatible Devices: use with label works LW-300, LW-400, lw-600p and lw-700 label printers.