New York–style pizza is traditionally hand-tossed,[3] consisting in its basic form of a light layer of tomato sauce[2] and genuine mozzarella cheese; additional toppings are placed atop the cheese.[3] Pies are large, typically around 18 inches (45 cm) in diameter, and commonly cut into 8 slices. These large wide slices[4] are often eaten as a fast food or "street snack" while folded in half, as their flexibility sometimes makes them unwieldy to eat flat. Eating it folded also allows its oil and any toppings to collect more manageably.