Lisle magnetic socket holder. Red 3/8" socket holder organizes 28 standard and deep sockets (14 of each) in one convenient holder. Powerful magnets securely hold sockets in tray, and tray to any steel surface. Design of holder leaves sockets exposed for easy identification. Holds socket sizes up to 1" or 24mm. Also available in green (# 40210). Use red for standard sockets and green for metric sockets.