If you´ve never done it be extremely careful! It can be difficult to get even, and if you get any overspray on something taking it off will suck.And your windows have to be no less than perfectly clean.When I replaced my rear hatch and blacked out the window.There was marks from a blade or something that couldn´t be seen when I cleaned the window, but after the tint they were plain as day.In the future I will pay because if the tint isn´t perfect I´ll make them fix it!