The Rain-X Premium headlight restoration kit provide professional results at a fraction of the cost. Using a drill (not included) provides consistent, controlled results and eliminates the variability of hand sanding. The wet sanding process is easy and gentle resulting in less surface friction and less risk for damage. The sealant chemistry is reactive, curing and bonding together on the lens surface to create a solid protective barrier, extending the life of the restoration. Finishing with the sealant wipe further eliminates any remaining haze, boosts clarity, and protects headlights. The sealant wipe formula is water-based with no offensive smells and is not bad for your lungs.