This set includes the 8 most common size sockets and (2) 1/4' adapters. The pivoting organization pins allow for customized application based storage, and the space inside the case allows for storage of a common 10' hand wrench (not included). These sockets are made of high impact-resistant material to give overall durability to the case, and have recessed corners that distribute torque across flats, promoting life of the socket. The sockets feature large laser etched markings that make each socket easily identifiable, and are thinner than pneumatic wrench sockets for tough to access areas. Set includes: 7/16', 1/2', 9/16', 5/8', 11/16', 3/4', 13/16', 7/8', hex to 1/2' square impact ready socket adapter, and carrying case.