... use. The high-grade tungsten carbide steel construction ensures that nearly any blade you put through this sharpener will be ... straight edged blades Sharpens carving knife, scissors, shears, For kitchen, garden, RV, fishing, hunting , hiking, skiing. Snowboard Ergonomocally designed for ... Material : High grade plastic construction & Tungsten carbide steel As Seen on TV Samurai Shark Knife Sharpener