This 12-piece combination spanner set features metric sizes from 8mm to 19mm. The spanners are made from polished chrome vanadium with a recessed panel for enhanced durability. They come packed in a double blister and include a convenient metal storage rack for organization. The set includes spanners of the following sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19mm.