Fits Your Tri-angle Sharpmaker Base Every quality knife needs a quality Tri-Angle Knife Sharpening Rod to go with it. Made by Spyderco, this Medium-grit Tri-Angle Knife Sharpening Rod was developed with the true knife enthusiast in mind. It is 7''L X 1/2''W X 1/2''H and made of well-crafted Brown High Alumina Ceramic Stone. This Spyderco Tri-Angle Knife Sharpening Rod can be used to sharpen both Straight Edge and Serrated blades, Scissors, Awls, and many other tools. It is designed to be used dry, is easily cleaned, and fits your Tri-Angle Sharpmaker Base. ACC-SY204M1 SHARPNER MED STONE