Check the listing for details. 144pc GOLIATH INDUSTRIAL SOCKET STORAGE TRAY RAIL RACK HOLDER SET 1/4 3/8 1/2. Condition: New. Listed at 51.99 USD. 144pc GOLIATH INDUSTRIAL TOOL Socket Tray Organizer Set Model #'s: SSTBR, SSTBB And SSTBL Overall Length Of Each Tray: 10-3/4" (Without Handle)Overall Width Of Each Tray: 6" Heavy Duty Molded ABS Plastic Socket Clips Allow For Shallow Or Deep SocketsHolds A Total Of 144 Sockets For The 3 Trays Socket Clips Include: 1/4" Drive Red 16 Socket Clips3/8" Drive Red 18 Socket Clips1/2" Drive Red 14 Socket Clips 1/4" Drive Black 16 Socket Clips3/8" Drive Black 18 Socket Clips1/2" Drive Black 14 Socket Clips 1/4" Drive Blue 16 Socket Clips3/8" Drive Blue 18 Socket Clips1/2" Drive Blue 14 Socket ClipsSocket Trays Are Metal And Includes A Handle For Portability Socket Clips Can Be Added And Subtracted To Customize The Tray To Fit The Users Needs Spring Loaded Ball Bearings On Each Clip Hold Sockets Firm And SecureA Quick And Easy Way To Organize Cluttered Toolboxes And Work AreasWorks With All Brands Of Sockets Like Snap-On, Craftsman, Mac, And Matco Just To Name A FewTHANKS FOR LOOKING