100mm tapered blades. Each blade is permanently etched with its size and folds into a steel case. Locking thumbscrew for convenient use and protective storage. Contents: 13 blades 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1mm