Made of advanced and hi-tech material named zirconium The blade is extremely hard, almost as hard as diamond Abrasion resistance, corrosion resistance, and non-magnetic make it ideal for kitchen use Keep wear resistance and sharp always Healthy and environmental friendly for fruits and vegetables Keep the food's original color and flavor Package size: 17.1*9.2 cm (L*W) Handle Length: 9.5 cm Blade Length: 4.9 cm Notes: Keep it away from children Keep it clean and dry after your use