I used these pans for the first time recently and the medium pan warped after about 20 minutes at 400 degrees. I bought these to replace a frying pan that did the same so I was very disappointed. However, the reason I'm not giving a lower number of stars here is because I haven't experienced any warping on a larger pan. It baked vegetables perfectly at 400 degrees for a full 30 minutes. I'm glad they were cheap because if I had spent a lot of money on them I wouldn't have been too happy.
AmazonBasics Silicone Baking Mat Sheet
48 Review
GOBAM Wood Rolling Pin: The Perfect Dough Roller For Baking Cookies, Pie, Pizza & More - 13 X 1.38 Inches
35 Review
PME Scriber Needle Modelling Tool, For Cake Decorating, 5.7-Inch
38 Review
4 Pack 12 Inch Stainless Steel Round Pizza Baking Pan Tray Crisper Sheet Oven Cooking Healthy For Pizzas - Deedro
47 Review
Coffeemaker Kitfort KT-739, black
140 Review
Rozhkovy coffee maker Kitfort KT-702, black
449 Review
De'Longhi ESAM3300 Magnifica Super Automatic Espresso & Coffee Machine in Silver - Enjoy Your Perfect Brew Every Time!
110 Review
Bosch VeroCup coffee machine 100 TIS30129RW, black
106 Review