Heavy-duty black HMW polyethylene material with unique continuous industrial frame based on Platt's patented Guardsman™ design and construction. All hardware is recessed for wearability and shipping purposes. Cases come with built-in TSA accepted combination lock, 2 spring loaded handles, full-length piano hinge and security type bolts. All top and body interiors of cases are lined with high density foam. Case equipped with telescoping handle and 4 recessed wheels for easy transporting. Interior is set up to hold 5 notebook computers, video projector and accessories.