Professional tool for commercial or occasional use. Manufactured from chrome vanadium steel for strength and durability. Flexible spanners so ideal for those awkward hard to reach nuts and bolts. 72 tooth ratchets so works in 5 degree increments ideal for working in confined spaces. Flexible through 180 degrees. Combination spanner set so one end open and one end closed. Metric sizes. Supplied in a blow molded case for easy storage and transportation. SET Includes; SIZES 1 x spanner 8mm (total length 145mm) 1 x spanner 10mm (total length 165mm) 1 x spanner 12mm (total length 170mm) 1 x spanner 13mm (total length 190mm) 1 x spanner 14mm (total length 203mm) 1 x spanner 15mm (total length 206mm) 1 x spanner 17mm (total length 225mm) 1 x spanner 19mm (total length 255mm).