The Spyderco Diamond Triangle Pair features diamond- impregnated triangular rods for the Spyderco Sharpmaker sharpening system. It aggressively removes steel and is ideal for re-shaping and re-beveling cutting edges. It sharpens all types of edges including serrated edges.Overall length: 7.00 inWidth: 0.50 inMaterial: CarbideWeight: 0.30 ozMade in USAN/A