Carbon steel; sharp edges. Break in half lengthwise for use (protect fingers and use eye protection). This is the preferred cutting blade for use with the PELCO easiSlicer™. Ideally suited for use with Microslicer™, Vibratome® and other vibratory slicers. Excellent when used as is (unbroken) in McIlwain Tissue Chopper. •Length: 42.8mm (1.685") •Cutting Edge Length: 36mm (1.42"") •Width: 22mm (0.865"") •Thickness: 0.127mm (0.0045"")"