Made from chrome vanadium tool steel for long life and chrome-plated for corrosion resistance, these super-accurate wrench ends make spoke adjustment a snap.; Size range covers from mini bikes to full bore race bikes Includes heads: 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6.0mm, 6.2mm, 6.4mm, 6.6mm, 6.8mm Comes with carrying case Manufacturer's lifetime warranty