The JW GripSoft Deluxe Nail Clipper has a heavy duty sharp blade for a smooth cut without jagged edges, a rubber-sheathed handle design with GripSoft technology is ergonomically designed to fit the curvature of your hand, and non-slip grips that are made to be more comfortable and provide optimal control while grooming your pet. The Deluxe Nail Clipper features a cutting guard to reduce chances of cutting nails too short. The medium size is best for use on medium sized breeds and the large size is best for use on larger size breeds.