Magic Black s a unique, true-black spray-on chalk in a non-polluting aerosol. It has been specially formulated to blacken and intensify black and to cover stains, discolorations and blemishes. Magic Black dries rapidly and stays on. Will not rub-off like ordinary chalk or even come off with water but will wash out easily with Bo-Groom Shampoo. Works great on all long and short haired breeds, is non-sticky and has a fresh clean fragrance.