I purchased the precut 35% Tint for my 2004 Chevy Trailblazer and the tint fit perfectly on my vehicle windows, there was no need to trim anything. since this was my first time ever installing Tint on a vehicle it did take me 6 hours to get everything perfect. I had to watch YouTube videos to know what to do but if your experienced with tint then it should take you 2 hours to do everything, maybe 1 hour if you're an expert. I highly recommend this product and would buy it again when I purchase a new vehicle. I checked tint shops around my area and it would cost me $240 to get my vehicle tinted by the professionals. $40 is a better deal and looks like the professionals did it, I had to pay $20 to get a squeegee, rag, and spray.