Stertekt has been tested for ball impact in accordance with 'Prüfung der Ballwurfsicherheit, DIN 18032 Teil 3, Sportshallen für Turnen und Spiele' (requirements and testing of ball impact according to safety standard, DIN 18032, part 3, sports facilities). This certification shows that Stertekt is very suitable for use in sports facilities and gyms where it is exposed to very significant influence of ball impacts, for example in football, tennis, etc.