Where do you find the serial number on Heys d1018 4wd metallica 20 luggage?

The serial number for the Heys D1018 4WD Metallica 20 luggage can typically be found on the inside of the suitcase. Check the interior lining, often near the zipper or in a small pocket. Additionally, some models may have the serial number printed on a tag attached to the inside of the bag. If you're still having trouble locating it, refer to the manufacturer's instructions or website for specific guidance.