This headlight lens correction kit contains three dual-sided sandpaper pads, a very soft microfiber hand towel a bottle of PLASTX and a packet of headlight protectant.Before you start working on your headlights they suggest that you run a strip of masking tape along the edge of your lights so you don't accidently scratch your paint with the sandpaper. I skipped this step because I didn't have any masking tape on hand and decided just to be careful. I didn't scratch my paint job during the process so all was good. You will also need a small cup of water and something to mist or spray water with. A spray bottle would be perfect but I suppose you could also use and hose with a misting or light spray nozzle if need be. They include three different grit sandpapers in the package. You will need to put all three in a small cup of water and let them soak for a minute. Then take the course sandpaper labeled #1 and sand the front of each headlight lens in a up and down motion. There is no certain amount of time that you will need to sand. You will really need to judge for yourself depending on how much oxidation is built up on your headlights lens. You will need to keep spraying or misting while you are sanding because you need to keep it from drying while you are working on it. It also helps rinse away powder that comes off so you can judge how much more sanding to do. When you are happy with the results you do the same thing with the #2 sandpaper but switch to a side to side motion. Then you do the same with the #3 pad which is a super fine grit that gives a nice finish. When you are finished you should take some water and rinse off your headlights and dry them with a towel. They you will open the bottle of PLASTX which is a clear plastic cleaner and polish and apply a generous amount to the microfiber towel that is included and polish each headlight lens in a manner similar to waxing a car. Once complete you will take a clean towel and wipe of the remaining polish. They give you a decent size bottle of this cleaner / polish so you should have plenty to use again some other time. Next you will open the packet of headlight protectant and apply in the same way as the cleaner / polish. My truck is now about 10 years old and the headlights were very oxidized and foggy looking. I had took a before and after picture of them for comparison and I am very pleased with the results. They were badly in need of a cleaning before this process and now they look very decent. No they don't look brand new but I would say about 75% better than before. For the cost of this kit I am happy with the results. Purchasing a new set of headlights could easily cost be 20 times the cost of this kit so I feel like it is a very good investment and a smart way to improve the look of my truck.