Manic Panic Flash Lightning® Bleach Kit (30 Volume Cream Developer) Pre-lighten hair before dyeing with Manic Panic Flash Lightening Bleach Kit. This kit comes with 30 volume strength hair bleach. Before using any Manic Panic® Semi-Permanent Hair Color, pre-lighten your hair with Flash Lightning® Bleach to get the most intense color. One Bleaching 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. This kit comes complete with: 1 dust-free bleach powder (located inside plastic mixing tub) 1 30-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.