The BlueSpot 6 Piece Flexible Ratchet Spanner Set is manufactured from chrome vanadium steel for increased durability. Features 6 double ended spanners with open and 180 degree pivoting ratchet ring heads. The 72 teeth provide 5 degree ratcheting increments making it ideal for use in tight spaces. Fully mirror polished finish. Package Contents: 10mm 12mm 13mm 17mm & 19mm.