Sturdy Internal Wooden Frame. Rack Strip Front and Rear. Securing Straps Inside Flaps. Zipped External PocketRack Height: 4U (176mm) Maximum Depth: 220mm Dimensions: 550 x 250 x 240mm Weight: 2.9Kg. Shallow 4U 19″ rack case in a padded bag with front and rear flaps for access and ventilation. Equipment is protected by an inner wooden frame and secured by metal rack strip front and rear. Also fitted with carrying handle- shoulder strap and zipped outer pocket.. rack bag-padded rack bag-4u rack bag