Cases are for shipping electronic and industrial equipment.
Press Release Summary:

Original Press Release:
Platt Guardsman(R) ATA 300 Shipping Cases
These new cases from Platt are perfect for shipping electronic instruments and industrial equipment. They're constructed of HMW polyethylene thermoplastic with a continuous industrial frame to form strong but lightweight shipping cases. All hardware is recessed for easy stacking and protection during shipping. The cases are available as foam-lined (2" lining of foam on all sides) or foam-filled (filled with layers of dense 2 lb. foam). Each case features a full-length piano hinge, heavy-duty twist draw latches, a combination lock and a spring-loaded handle. Models 373-107 and 373-108 (pictured) each come with four ball-bearing wheels and a telescoping handle.