Holds 1/4", 3/8" and 1/2" socketsKeeps all sockets in one place in your tool boxIt accommodates a wide range of sockets and attachments including regular, long, universal, and extensionsHas convenient carrying handle to carry them to the job and avoid returns trips for the ones you forgetEasy to spot a missing toolHolds 80 sockets totalTray loaded with tools is heavy enough to stay put without fastening in place, even when removing sockets from the rack. Rack tray is 6" x 18" metal frame with four 17" socket racks.