Gator Cases Lightweight Rolling 4U Rack Case with Heavy Duty Latches, Retractable Tow Handle, and Recessed Wheels; Standard 19.25" depth (GRR-4L) Lightweight ABS Construction with Retractable Tow Handle, Wheels, and Heavy Duty Twist Latches Standard 19", threaded and field replaceable 7mm zinc-plated steel rack rails Removable Front and Rear cover for access to Front &amp; Rear rack rails One pack of 32 Gator Rack Screws included 19.25" Rack Depth / 2U Rack Size (7")