Bi-hexagon Sockets Manufactured From Chrome Vanadium Steel Hardened And Tempered With a Chrome Plated Finish. The Flexible Head Allows Sockets to be Positioned Through 180degree For Work in Awkward Locations. Display Packed. Contents: 10 11 12 13 14 15 16 17 18 And 19mm Hand tools Automotive Tools/Socketry Spanners & Tx-star/Socketry 24.22 GBP