This package of replacement blades for the Crain No. 450 Deluxe Strip Cutter includes twelve blades. When used in the No. 450 Deluxe Strip Cutter, they can cut wide architectural strip straight in a single cut. They can also cut regular strip straight or diagonally in one cut. The packaging includes a clear plastic box with a lid that snaps shut to protect blades in storage. Blade dimensions: length 1.87″, width .48″, thickness .040″. Net weight: 1 oz.