Contents: TRX-Star Sockets; 1/4″Sq Drive – E4, E5, E6, E7, E8, 3/8″Sq Drive – E10, E11, E12, E14, 1/2″Sq Drive – E16, E18, E20, E22, E24, Male TRX-Star Bits, Standard & Long; T20, T25, T30, T40, T45, T50, T55, Drive Adaptors; 3/8″Sq x 10mm Hex, 1/2″Sq x 10mm Hex.