Spyderco - Tri-Angle White Sharpening Stone with Fine-Grit for Professional-Grade Finishing and Polishing - Sharpmaker - 204F1

High Performance: Lightens a blade's scratch pattern to an even keener degree.
Professional-Grade: Designed for finishing and polishing of sharpened edges for maximum sharpness.
Multifunctional: It sharpen all types of edges including serrated edges.
Easy to Clean: Simply scrub with a scouring pad and powdered abrasive cleaner. Let the product air-dry.
Specifications: Overall Length (Inches): 7, Grit: Fine, Color: White