Snap-on Tools USA RARE NEW 2-Piece COMBAT GREEN Color 1/4 Metric & SAE 3 row post socket trays. KA143MET / KA143METCG = 3 Row Metric 1/4 Drive Socket Tray Organizer For 4mm – 15mm Sockets. KA143FR / KA143FRCG = 3 Row Metric 1/4″ Drive Socket Tray Organizer For 1/8″ – 5/8 Sockets.