Durable Aluminum Oxide grain delivers an exceptionally long lasting cut * The cloth cotton is highly tear resistant and durable * Available in 2.5-Inch. 3-Inch and 4-Inch widths * Available in 2.5-Inch by 14-Inch , 3-Inch by 21-Inch , 3-Inch by 24-Inch, 4-Inch by 24-Inch Grit range from 40 -180 (see sizes for specific grits)