What you're getting — the physical part
The metal head holds up in industrial environments where plastic might crack from repeated impacts or tool drops. The 44 mm diameter gives a large target for gloved-hand operation — think emergency-stop stations or machine-start actuators where positive engagement matters. The amber illumination means the button itself lights up when the circuit is energized, giving a clear visual status on the panel. It's a single-unit component — the contact block and lamp are ordered separately to match your circuit voltage and contact configuration.