Shearsharp is designed to sharpen your general purpose scissors, hedge clippers and tin snips.The large ergonomic handle fits either hand safely and securely.The full length finger guard protects your fingers.The sharpening blade is diamond-honed tungsten carbide and provide years of reliable use.Shearsharp will not rust and can be cleaned with soap and water or in the dishwasher.Sharpener Material: Diamond Tungsten Carbide