As much as people love the traditional square design, there is a vocal crowd of passion for the round pie iron. It's all in the way the cooker seals the food. Locking in flavors whether it's a hamburger, quick bread or dessert. With a sandwich, the round design crimps the corners of the bread to form a firm seal(similar to ravioli). 4-1/4" in diameter head. 28" overall length. 2-1/2 lbs.