●【Large Capacity】Magnetic socket organizer set have 141 socket hold trays for SAE & Metric 1/2,3/8,1/4 Inch Drive sockets. ●【Powerful Magnetic Base】Socket holder have powerful magnetic base,convenient to store and not easy to lose,and you can attach them to the work surface for efficient operation when you repairing. ●【Color and Size Markers】Socket organizer tray have two colour to distinguish between Metric and SAE,each tray have size marker to classify each socket. ●【No Scratches】The surface of the magnetic holder base have soft rubber which can not scratch your socket and steel toolbox etc. ●【Standard and Deep Size Sockets Organizer】3/8 and 1/4 inch socket organizer can hold standard and deep SAE & Metric size sockets,1/2 inch drive socket tray only suitable for standard size sockets.