The Combination Pack consists of the AccuSharp Knife and Tool Sharpener and ShearSharp Scissor Sharpener. Sharpen just about anything in the house in about 10 seconds. The AccuSharp Knife and Tool Sharpener sharpens knives, cleavers, axes, machetes, and many other cutting tools. The ShearSharp Scissor Sharpener sharpens general purpose scissors, hedge clippers and tin snips. Both products are designed with the safe & secure ergonomic handle. The full length finger guard protects your fingers. Sharpening blades are diamond-honed tungsten carbide for years of reliable use. They will not rust and can be cleaned with soap and water, or in the dishwasher.