Car power panel enclosure

I have purchased a "SQDeal 12V Universal 3 in 1 Cigarette Lighter Socket Dual USB Power Adapter Charger LED Digital Voltmeter for Car Auto Motorcycle Boat Riding Mower Tractor Travel Trailer Caravan" at https://www.amazon.com/gp/product/B014H7FZ4C/ref=oh_aui_detailpage_o05_s01?ie=UTF8&psc=1
but it does not come with the enclosure. I have a Monoproce Select Mini printer, that can only print 120x120x120 mm size, so I had to split the box into two parts that I can slide together.