Great product. There is definitely a learning curve so buy more than you will need. I applied this to my tail lights. By the time I was done with the first application I had a much better feel for the process. I will remove it and reapply. My tail lights are quite difficult to cover because they run up the whole back of my car so I need to cut the tint in order to turn a corner. Once I learned exactly where I should make the cut it was so much easier.I saw a lot of people complaining about how it was shipped. The seller listened and fixed the issue. The packaging was great. They put a styrofoam stick in the center and held it closed with a zip tie. See attached photo.A tip *** Use lots of soapy water. Lots and lots. And continue to spray it on throughout the application process. Clean the headlights so there is no dirt or residue. Then spray the whole head or tail light with the soapy water. Peel the film off the tint and spray the tint with the soapy water (There is film on both sides of the tint. Make sure you peel the film off the sticky side and spray). (Keep the top layer of film in tact for now as it will protect the tint from getting scratched as you are manipulating and stretching it) Place the film in place with your hand and rub and stretch it with your hand so you remove most of the bubbles. Next, use your tool (credit card w/ cloth wrapped around it or something similar) to further remove any bubbles. If you find you need to lift and adjust the tint go ahead and do so but make sure to respray the light and tint. Now cut the film so it is the right shape and size. Now with the tint the right size you should be able to push all the bubbles out from under the tint. Before you move on to the next step, try to get the tint as near to perfect as possible. Once you apply the heat it becomes more difficult to push any water out from underneath the tint. Next, grab your heat gun, turn it on a low setting and hold about 8 - 12 inches from the surface of the light. You will see the vinyl start to adhere like shrink wrap around the light. Don't over heat or the tint will bubble up or become dis-formed when you are stretching it.. Lightly continue to press the bubbles out with your tool. You will get a feel for when you should remove the heat. And continue to remove the bubbles and applying heat as needed. Once you are satisfied you have removed all the bubbles, remove the top layer of film from the tint. You're all done. Again, this takes practice so be prepared to have to apply more than once until you get it right.I will update with more pictures once I get it perfect.