RW-2 label rewinder Back Specifications For use with the QLS-4100 Xe label printer.Maximum Rewind Diameter: 12″ (30cm)Label Width: 0.75″ (19mm) – 6.5″ (165mm)Core Size: 3″ ID (76mm)Rewind Torque: AdjustableMaximum Rewind Speed: 30 inch/sec (76 cm/sec)Power: Universal Voltage