- Size Guide
FOSS SHARPENING STONE The Foss sharpening stone is the Zt Sports number 1 selling stone for speed skate blade sharpening. FOSS is a DRY stone and is well suited for those who are starting to sharpen. In addition a combination stone that provides the convenience of two different grit surfaces in a single stone. with both a coarse side for sharpening and a fine side for polishing Use DRY without oil or water. 25x7.5x2.5cm (10x3x1 inches) Lastly check out all our Sharpening stones here.