Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished finish. Comprising four socket adaptors and three universal joints each with a spring-ball socket retainer. Supplied in storage case. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished finish. Comprising four socket adaptors and three universal joints each with a spring-ball socket retainer. Contents: Universal Joints; 1/4""Sq Drive, 3/8""Sq Drive, 1/2""Sq Drive, Socket Adaptors; 3/8""(F) - 1/4""(M), 1/4""(F) - 3/8""(M), 1/2""(F) - 3/8""(M), 3/8""(F) - 1/2""(M) Sq. Drive. Supplied in storage case. Lifetime guarantee*.