27 Piece 1/2" socket set comes in a powder coated, steel box. Includes:Socket: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 30, 32mmSpark Plug Sockets: 16, 21mmQuick release ratchet handleSliding T-barUniversal JointExtension bars 3", 6",10"Flex handle 10"3/8" F x 1/2" M 3-way adapter