Winner's Circle Dog De Nose Nos, 1-Ounce The nose blackener wont rub off or harm the dog in any way Just apply a small amount of product from the first tube, let it dry and then apply the nose blackener from the second tube Use de nose nos to blacken dogs noses in two simple steps Comes in 1-ounce tube Measures 4-4/5-inch length by 1-1/2-inch width by 4/5-inch height