At least the label claimed they are stainless steel.... But they are HORRIBLE.
After only a few uses, they are sticky and grimy and I can't get them clean. I tried Bon Ami and a nylon scrubber. Nothing came off. Sprayed with vinegar, sprinkled on some baking soda, and let them sit. Nothing. Made a baking soda paste, then added Dawn and HOT water, left them to soak. Still nothing. Threw them into the dishwasher without rinsing all the stuff off -- they're a mess.
Now what do I try? Or do I toss them? And if I toss them, please recommend cookie sheets (preferably made in USA) that won't do this!