My window opening was really tight so I was really concerned about weather Sheets could cut the glass within a sixtenth of an inch.Both pieces were cut perfect.I would recommend any of my friends use sheets as their Glass Man.When I got home I Backed the truck in immidiately and got to work.The back window on the 4-runner was down (MY BAD) AND MY SONS PIT BULL JUMPED THRU THE BACK WINDOW LANDING ON THE GLASSJIM SHEETS JUST LOADED IN MY TRUCK.Lucky for me jim had layed cardboard down,so I had a cushion under and over my glass.I was just glad that when I asked for help Jim pretty much loaded the glass for me,so my glass didnt break.