The pans look very nice when I got them. However, my brand new LG smooth top black range has scratches that removed the finish. I did not move the pan back-and-forth on the glass I’m always very careful when I use my range that I would’ve noticed. The bottom of these pans have a raised design and writing that’s beveled causing the damage on the Glasstop unit.I don’t even remember barely moving the pan around I sure didn’t slide it back-and-forth. I barely use my range. so soon as I used that pan and pulled it off, tried wiping and wiping thinking maybe it was something that was dirty but it wasn’t. the glass had been damaged. I’m pretty disappointed I know that it’s the design on the bottom of the pan that damaged my range. That is 1000 range. Nothing I can do now. I would like a refund. It did not say in the ad for those pans that it could not be used on a glass top range.