Combo Geometry Sets are packaged in a plastic pouch with two divided pockets. Each set contains a 180 Protractor, 45 and 60 triangles with beveled inking edges and a 6" or 12" ruler. The rulers and triangles all have inch and centimeter calibrations. The 6" set has holes on the side of the pouch so that it can be stored in a 3-ring binder.