1. Single weight: A 202 grams, B 150 grams 2. Single size: A 76x27 mm, B 78x20 mm 3. Material: A brown corundum, B silicon carbide 4. Scope of application: scissors, fruit knives, folding knives, knives, blades and other cutting tools 5. Features: safe and non-toxic, environmentally friendly and healthy, coarse-grained surface sharpens quickly, medium-grained surface is fine grinding and trimming, wide application range, wear-resistant and durable
