The Non-Stick perforated French Loaf Pan is constructed of aluminized steel・ the material of choice for commercial bakeries and has 4 wells to allow for baking 4 loaves of bread at a time.The perforation allows air to circulate around the bread creating a beautiful golden crust. The metal thickness of this pan has been selected to allow for even heat distribution and maximum service life.Size:15"X 13"X 0.98"・ the width of each gutter is 2.75".Weight: 17.95 oz.This pan is made of carbon steel・ a strong and durable material. It coated with PTFE・ which been known as TEFLON.It provides a clear・ non-stick・ non-toxic baking surface・ specially formulated for superior baking. It's FDA approved; Do Not exceed baking temperature of 500 degrees F.To clean・ simply wipe clean after use; soap and water are okay to use and Dishwasher safe. Non-stick・ heat resistant and Dishwasher safe.Dry pan completely・ after cleaning.