The custom-blended shades are designed to perfectly match a wide variety of hair colors and emulate the look of real hair. In fact, the versatile tones easily allow anyone to find the perfect match for their hair color. The blendable shades easily define and shape the brow and they're built to last, too. The sweat- and water-resistant formula is made with harder lead that emulates the look of real hair. It features a spoolie brush on one end and a one-turn sharpener on the other.