electric engraver power adapter kit.
The power adapter is designed to be used in a vehicle's cigarette lighter socket.
The engraver itself is rated for 220-240V~, 0.1A, 50/60Hz operation.
It has a duty cycle limitation of 10 minutes ON / 10 minutes OFF.
The adapter appears to convert the car's 12V DC power to the required voltage for the engraver.