Features:

• 13 gauge
• Constructed from 3003 and 3004 aluminum alloys for durability
• Has a coated galvanized bead wire for added strength
• All pans are 1'' deep
• Highly Recommended by Cooks Illustrated

Editor Reviews:

Product Description:
Constructed from 3003 and 3004 aluminum alloys for durability and with a coated galvanized bead wire for added strength. Pan is 1'' deep. Cooks Illustrated Highly Recommended this pan and stated that the baking sheet "produced perfectly browned cookies, oven fries, and jellyroll. The pan is solid as a rock, and can't be twisted or warped."

Rating : - Great Pans
I bought these pans to make cookies for my staff over the holidays. The pans went in and out of the oven for 24 hours over the course of two days, making multiple batches of five kinds of cookies at various temperatures. I used parchment paper and didn't take the pans over 350, so they still look unused... even the sticker I had overlooked on the bottom was in reasonably good shape. :)
Per other reviews, mine had the "bad" stock number, but I have nothing but good things to say about these pans.