DURABLE: This 24 piece 1/2" socket set is made from strong chrome vanadium steel for durability. CONTENTS: The versatile set includes a 1/2" drive reversible ratchet handle, a 13/16" spark plug socket, a speeder handle, an extension bar and a wide assortment of metric and SAE sockets. CARRY CASE: It is supplied in a sturdy, blow moulded storage case.