NARRS invented bionic grass : Intelisol TM. It is an ultra resistant product that amplifies the grass mechanical qualities. Under the grass the substratum is a mechanical analogue of grass. It is a synthetic surface that has exactly the same characteristics as grass. The result is unique.Whatever the weather, up to 1500 horsees can compete on the same course. The take off, landing, and turns are the same for everyone from start to finish.