This 3" x 8" nano cloth is mounted on glass to give an exceptionally flat surface with outstanding characteristics. Use this size in standard stoneholders. The cloth has less draw than kangaroo leather and is suitable for use with the finest of compounds. Not ideal for use with pastes, but rather sprays with deionized water such as the CBN and poly and mono diamond compounds from 1 micron down to 0.025 micron diamond. The cloth also doesn't fluff out from water. Provides an ultimate level of performance for knife and razor edges. Like leather, use edge trailing strokes only. Absolutely superb to use for edge touch-ups too!