Nordic Ware Grill Topper

I got 2 of these and was excited to use them because it meant no more dragging the grungy grill grates in to scrub. I tended to not use the grill as often because of that dreaded chore. These are non-stick and fairly heavy BUT they both warped during the first use on the gas grill and they still buckle while in use but after they cool down the warping goes down somewhat although not all the way. They are still usable if you don't care how they look. Some of the non-stick finish has come off in spots too and they've only been used a handful of times. However, they are still much easier to wash/handle than the grill grates (nothing sticks when you use no-stick spray first) so I did not return them. I also put them in the dishwasher when they're not that dirty and they come out fine.