Horotec Watchmaker Set of 10 Screwdrivers & Blades is displayed in a plastic case. It features 10 watchmakers' screwdrivers with blade diameters: 0.60mm/0.70mm/0.80mm/1.00mm/1.20mm/1.40mm/1.50mm/1.60mm/1.80mm/2.00mm. Set comes with an additional 10 "T" shaped spare blades and 2 fixing screws.