Manic Panic Flash Lightning Hair Bleach Kit with 40 Volume Cream Developer lifts hair up to 7 levels to prepare your hair for the most intense Manic Panic hair colors. Intended for natural light brown, medium brown, dark brown and black hair to achieve medium blond to light blonde results This kit comes complete with:  1 dust-free bleach powder (located inside plastic mixing tub) 1 40-volume cream developer 1 plastic mixing tub 1 tint brush 1 plastic cap (located inside plastic mixing tub) 1 set of plastic gloves (located inside plastic mixing tub) and instructions for use. Size: 3 oz of powder, 4 oz of Developer One Bleach Kit is enough product for short hair of average thickness up to 4 inches in length. Multiple kits will be required for longer hair - about one kit for every 4-5 inches of hair length. Pre-lightening the hair before coloring is the most important step when using Manic Panic hair color to ensure results are bright, pastel, UV reactive, or bold,