Tri-angle sharpener offers precise edge control with the Tri Angle System for Pocket Knife sharpening using high alumina ceramic stones for consistent results.Designed for stable siting on a work surface, this sharpener uses an ABS plastic base and lid for easy storage. The angled guides set sharpening angles at 30° (15° per side) or 40° (20° per side), helping you keep blades consistently sharp.Core components include two sets of high alumina ceramic stones: brown medium-grit stones for aggressive sharpening and white fine stones for a professional finish. This combination supports fast material removal and refined edge polish on pocket knives, recurve blades, and tanto blades.To use, keep the blade plane vertical and draw the edge along each stone. For serrated blades, use the rounded edges and a looser grip to follow serrations. After sharpening, use the stones dry and clean with a plastic scouring pad, then air-dry to maintain performance. Features: Preset sharpening angles at 30° (15° per side) or 40° (20° per side) for consistent results. ABS plastic base and lid provide compact storage and stable placement. Keep blade plane vertical and draw edge along each stone for effective sharpening. For serrated blades, use rounded edges and a looser grip to follow serrations. Ceramic stones require dry use and careful handling to avoid breakage; clean with a plastic scouring pad and air-dry. Includes two sets of high alumina ceramic stones: medium-grit brown for aggressive sharpening and fine white for finishing.