A high quality set of sharpening stone suitable for a variety of uses. Suitable for sharpening blades, scissors, shears, planes etc... Includes 180, 260 and 360 Grit. This makes the set suitable for all conditions of blades. On already pretty sharp blades use the fine one to really bring into top condition, on blunt blades work your way through starting on with the coarse one, working up to the fine one. Overall sharpening area per stone 75mm x 25mm