You can also buy kits wit stuff to spray on...it provides instructions to the effect of spay the stuff on the tint, cover with aluminum foil for 10 min or so and then everything including the glue comes off.....I have never tried it the right way.,....pull off the tint and scrape the glue with a razor...the tint remover works good but Windex works just as well and costs MUCH less....you will have to keep the glue soaked with Windex as you scrape it.....the windex will dry pretty fast as you go...you'll be surprised....if all your doin are the door glass...it wont take you 30 min and that is if you have problems....with tint not that old.....5-10 min per door. GL