15° to 20° 15° to 20° (white corundum 1000#) 15° and 20° 15° to 20° <ul class="a-un0rdered-list a-vertical a-spacing-mini"> <li class="a-spacing-mini">Note: This knife sharpener replacement disc set is only an accessory for the rolling knife sharpener and cannot be used alone. The roller handle and magnetic base are not included in the package. <br /> [Professional Rolling Knife Sharpener] This is a new upgraded knife sharpener. With the rolling knife sharpener, you can keep your knife's edge like new for longer. Just push the roller gently and anyone can quickly sharpen the knife like a pro. Get sharp without mess or electricity/water. <br /> [1000# Ordinary Sharpening Disc - Fine Sharpening] Used for fine sharpening, polishing and removing burrs from blades to consolidate the sharpness of the blade. Suitable for daily sharpening. <br /> [Choose the Right Angle] Our kitchen knife sharpener magnetic base offers 15° or 20° angles to ensure your knives meet your cutting needs. This compact pocket knife sharpener has powerful sharpening functions. </li> </ul>