Odyssey FZAR20W - 20U Pro Amp Rack with CastersSturdy Flight Zone ATA Amp Racks incorporate dual rack rails (front and rear), heavy duty rubber feet (non wheeled versions), spring loaded handles, and removable front and rear covers. Designed to protect and transport larger amps and other standard 19" rack mountable gear. Features and Specifications 20 Rack Spaces Heavy Duty Ball Corners Recessed Latches and Spring Loaded Handles Heavy Duty Casters(2 w brakes)*Caster Assembly is Required Removable