This Sealey S01232 Siegen Stubby Combination Spanner Set includes 14 pieces. The spanners are made from drop-forged Chrome Vanadium steel, which is heat-treated and chrome-plated for corrosion resistance. It features both open-end and 12-point WallDrive® ring combinations. The set is supplied in a storage tray and includes sizes from 6mm to 19mm. The set comes with a lifetime guarantee*. Model No. S01232.