The BlueSpot 5 Piece Chrome Vanadium Obstruction Spanner Set is specially designed for working in confined areas. Manufactured from Chrome Vanadium Steel, heat treated and Nickel plated for increased durability. Includes handy carrying case for quick and convenient storage. Fully mirror polished finish. Double Ended. Sizes: 8 x 10, 11 x 13, 14 x 15, 17 x 19 & 21 x 22mm.