These knives have a unique design which is self sharpening and perfect for taking on trips or picnics. The utility knife is ideal for a variety of purposes, from chopping fruit and vegetables to trimming meat. The Santoku knife is the perfect tool for preparing dishes that require a lot of slicing and dicing, like Chinese, Thai, and other Asian foods. The scabbards sharpen and hone the knife blades every time the knives are removed and protect the blades from damage when stored; an advanced locking systems ensure that the knives stay securely in the scabbards. The shape of the scabbards allow for easy sitting on the countertop or in a drawer. ".