Siesta Pro Modular Corner Set consists of 4 modules (2 corner, 1 middle, 1 pouf). You can easily fix the modules to each other with the lock mechanism under the L Corner Sofa Set and you can combine the modules as you wish by changing their places. If you want, you can use it as 3 + 1 If you want, you can use it as a corner If you want, you can use it as 2 resting seat. You have the ability to adjust your seating yourself according to the space in your home.