Standard Pack = 1 piece(s). ProHold Socket Hex Bit 5 Piece Tool Set without Sockets, 6 IN Length. Includes Sizes: 5/16 IN , 3/8 IN , 1/2 IN , 9/16 IN & 5/8 IN . With ProHold Button Technology. Protanium High Torque Steel and ProGuard corrosion resistant finish. Packaged in a transparent clamShell.