Ideal for home or professional use the QuickFinder Deluxe takes the guess work out of trimming your dog's nails. Especially useful for dark nails where the quick is very difficult to locate. Using QuickSensor technology the QuickFinder Deluxe finds the quick for you and lets you know when it is safe to make the cut. Easy to understand visual cues are color coded and illuminate as you move the clipper along the nail. Heavy duty, quality construction designed to fit comfortably in your hand. Specifically designed for large and hard nail breeds.