Katana 55 mm Due to the smart C-shape® mechanism, Katana 55 mm is one of the most innovative artificial lawns available. The secret lies in the unique half-moon shape of the thread and the use of a new generation of polymers. This makes C-shape® thread one of the most durable threads available. Tests have shown that C-shape® is up to two times more durable compared with other artificial grass. Durability is the key! With two different colours – light lime and olive – providing a very natural appearance, its flexibility and suppleness prevent early aging processes. This ensures high quality appearance and texture for many years. Free from lead and cadmium and 100% European quality, durable, comfortable and strong, with a memory system incorporated which makes the lawn return to its original shape.