GRIDMANN - 15 x 21-in 12pk - Commercial Aluminum Cookie Sheets - Silver

Excellent performance - Aluminum pans provide even heat distribution as well as quick heating and cooling Convenient - Great for cooking large amounts of food Lightweight - Easy to move around Galvanized wire edge - 1.0 mm thick rim that prevents warping and keeps the pan flat Sturdy - Each tray is 18 gauge commercial grade aluminum (beware of thinner models)