We offer the Bialetti Moka Pots in two sizes: 3 cups and 6 cups. However, it's important to note that the serving sizes may not be exactly equivalent. The Bialetti 3-cup Moka Pot has a capacity of 130ml or 4.4oz, making it perfect for one or two servings. On the other hand, the 6-cup Moka Pot has a capacity of 270ml or 9.1oz, which is suitable for serving 3 to 4 people.