Ping Pong is a ceramic granite ventilation block (breeze block). This product is a low-tech solution for passive design strategy in green building/architecture design. The product allows natural cross ventilation in a space or a building, a real challenge for tropical or subtropical areas. By allowing more natural cross ventilation and light to enter a space or a building, Ping Pong helps reduce energy consumption, especially air conditioning. It also reduces rain splash from entering the building. Its surface is easy to clean from dust build-up, and it reflects partial sunlight into the interior space.