The 36 Hard Disk Drive Case by Case Club is the perfect way to protect your invaluable data storage. The case is extremely rugged and is great for shipping while keeping your equipment safe in transit. The internal foam is pink anti-static closed cell polyethylene, perfect for 3.5″ Form Factor HDDs. The case is made with heavy duty double throw latches to keep your equipment safely inside the case, and padlock holes for added security. The tilt wheels and extension handles make it easy for self transporting. The case has a built in automatic purge valve which is great when the case has to travel in high altitudes. (the purge valve eliminates the vacuum that forms in the case at high altitudes). Your hard drives will be extremely well protected within this case.