They are excellent for absorbing and drying the car after it has been washed. This includes all the glass on the car. I would not cut the towel since it is stitched around the edges - I'm not sure if it would unravel if cut.
I use it for drying the whole car since its s big towel. It does ok on glass and windshields but its too much if thats all u going to use it for. Also dont cut it. This towel snags easily and if u cut it the whole thing will probably fall apart.
I use it to dry my auto glass/windshields as well as my body exterior. I also use it damp to clean the inside of my auto windows (doesn't leave streaks) as well as to wipe down my dashboard and navigation/radio screen. When applying a cleaner to the window, I use the basic microfiber cloths. I haven't done it but the towell could be cut in half; I would recommend sewing/burning the ends because it is a weaved thread that could potentially fray and lose form.
They will work on auto glass, but this cloth is quite big, so wouldn't be the best choice, as it's hard to manage. No, I would not cut it. It would fray a lot. It already pulls/snags very easily... I'd recommend the smaller yellow waffle ones... Maguires?
The "waffle" is a terrific product! Removes water from any surface. Should be used on already clean surfaces, otherwise the the waffle can get contaminated and cause very fine scratches in painted surfaces. Couple of tricks fro drying...Got a leave blower? Blow dry your car, as it removes water in hard to get to surfaces. After the car is rinsed remove the nozzle from the hose and rinse the entire car with the steady stream from the hose avoiding splashes. This process delivers sheets of water to the car and it runs right off leaving very little water behind...drying is then a snap...the waffle hardly gets wet!
They are terrific for drying vehicle and for glass, but I designate one particular cloth for the "final" glass/ windshields cleaning etc. They can be cut but I surely would not recommend it. I would suggest you simply buy smaller versions. I have at least three sizes for anything I need. Great product.