Built on 2000 lb. Harbor Freight trailer with 3/4 inch pressure treated plywood with 2x2 framing screwed together, sheeted with corrugated PVC roofing with smoked clear roof for light and shade. It has its own battery with LED lighting and a charge wire thru the 7 wire plug, aluminum diamond plate workbench in front with low voltage charging bank and storage underneath for books files etc. It is wired for 120v with 2 plug ins and a power strip with a retractable cord reel to plug into house power or generator. Small parts washer comes with it! Flop down gate for easy access and loading, and tall enough to walk in! It is basically new with under 100 miles, I drove it to 5 jobs before health forced me to retire. I have title, its so light it could be hauled with basically anything with a hitch and a 2" ball! And no, it is not top heavy at all!