Yes, its window film you want. Many different strengths. Most Architectural window films have metal in them to reflect solar energy otherwise the glass can overheat. The type of glass annealed or toughened, double or single glazed, the size of the pane, the direction the sun hits it and if any shaded pockets or overhangs which could cause thermal stress all need to be considered and an appropriate film chosen.
If the glass is toughened then you are unlikely to have any problems but if annealed or laminated there is a good chance of thermal stress fracture if the wrong film is used. I know what is safe but still send a survey report of every commercial job I do to the film manufacturer as a double check and to satisfy the warranty
As Peter said above it is fitted wet which means it can be slid around a little and is easy to squeegee BUT it can not be repositioned or lifted off the window once in place, as soon as you try to lift it off to reposition it a thousand dust particles will cling to the wet film surface which can not be removed and they will then show up in the film.
There are quite a few installing problems and technique tricks to getting a good clean install. A very different beast to vinyl. I would suggest getting some tips and practice before starting on a paying job.