Input Drive Size: 3/8" Drive Shape: Square Type: Socket Set Includes: Don't need complete set?Click here to buy items individually 3400M 6 Point Sockets 6, 7, 8, 9, 10, 11, 12 3405M 12 Point sockets 13, 14, 15, 16, 17, 18, 19, 21, 22 3300C Spark Plug Sockets 16, 20.8 Metal Case: W400xH147xT50mm