HART Collapsible Hurdles are perfect for training and junior competition. The hurdles are a hinged hurdle that collapse when knocked over to provide athletes protection against injury. The hurdles are height adjustable to to suit a variety of ages and abilities within schools and clubs, or to create dynamic plyometic training sessions. They are constructed with sturdy galvanized steel frames with plastic baton, suitable for rigorous use, with the ability to store the hurdles flat.