Made of metal so that the bread box is strong and sturdy. Our bread box is big enough to hold 2 large loaves of bread, rolls, muffins and more. Don't worry about buying much bread. Our bread box retains enough air and moisture to keep the bread and clean for a long time. Our bread box is super convenient to open and close with its easy hand grip. Once it's closed, it 't have any space for bugs or your pets to sneak in.