No more searching for Loose Sockets! This 3/8" SAE Tray holds 39 sockets total. Fits most U.S. foreign made sockets. Sockets are not included. Holds the Following Sockets: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16 & 1″.