Professionals prefer Dahle. German engineered trimmers feature a precision graduated, self-sharpening blade made of German Solingen steel. This blade cuts in either direction and maintains a perfectly honed edge every time it's used. Why trust your images with anything else? With over 75 years of experience, Dahle products are designed to meet the strictest safety standards in both personal and professional grade products. You can have the peace of mind in knowing you are about to purchase a quality product that will provide many years of trouble free operation.