This Harmony ZBY circular legend for emergency stop function has yellow background and is marked with a “EMERGENCY STOP” lettering, and a diameter of 60mm.It is compatible with Harmony XB4 and XB5 padlocking device.This circular legend provides clear labelling of your emergency stop devices units.It is supplied ready engraved with a marking relevant to machine operation and is compatible with Harmony emergency stop or switching off unit.It provides clear and resilient symbol marking on the label, with high contrast.