Pruners and other garden tools need a good tune up every now and again in order to function at their best. The sharpening stones has two different grain sizes. Let the sharpening stone sit in water for an hour, start on the orange side with a grain size of 180 and then sharpen with the grey side with a grain size of 280. - Two different grain sizes - packaged in a wrapperSharpening stone, Corundum
