A Lansky Tri-Stone benchstone (BSTR100) with three 2" x 6" surfaces on a plastic base: 200-grit diamond (full coverage) for reconditioning, 280-grit alumina-oxide for regular sharpening, and 1000-grit ceramic for polishing. Rubber feet and screw holes for bench mounting. Specs from Lansky's Tri-Stone Benchstone page.
Three stones in one base. Start coarse if the edge is gone, then step down.
Features