specifications : Type: Knife Sharpener Angle Guide Production number: not applicable Size: approx. 9.8 x 2 x 1.5 cm Characteristics: This sharpening guide positions the knife at the perfect angle for sharpening Ideal for use with sharpening stones for quick, precision sharpening Features a protective ceramic strip for long-lasting use Just wipe Material: plastic + ceramic Color: Black Size: approx. 9.8 x 2 x 1.5 cm How to use: 1. Attach the angle guide to the appropriate location on the knife blade 2. Both hands hold the and the back of the knife, the ceramic part touches the surface of Wets Tone or Diamond, set the knife blade at a fixed angle, move the blade back and forth over the sharpener with little pressure. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks very much! Delivery content: 1x angle holder for sharpening stone