This is the only nail clipper that takes the guesswork and trauma out of trimming your pet's nails by sensing the correct cutting depth, preventing you from cutting into the quick--the sensitive tissue below the nail line. Upon inserting your pet's nail between the clipper's blades, a built-in sensor distinguishes between nail tissue and the quick and lights a green LED when a safe trimming depth is reached. A firm squeeze of the easy-to-grip handles cleanly and painlessly clips the nail in one smooth motion. For dogs, cats, and other small animals. Includes two LR44 batteries. 5 3/4" L x 2 1/2" W x 3/4" D. (7 oz.)