Features: This sharpening guide positions the knife at the perfect angle for sharpening Ideal for use with sharpening stones for fast precision sharpening Features a ceramic protective strip for long-lasting use Wipe clean only Material: Plastic + Ceramic Color: Black Size: Approx. 9.8 x 2 x 1.5cm How to use: 1. Attach the angle guide to the corresponding place of 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 slight pressure. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Specifications: Brand: Unbranded Type: Knife sharpener angle guide Manufacturer number: not applicable Size: approx. 9.8 x 2 x 1.5 cm Scope of delivery: 1x angle holder for whetstone