Arena AluPro balance safety stirrups by Acavallo with a patented side opening. Designed with a unique HiFlex stress activated locking and release mechanism with a large opening for the riders foot in case of emergency; it has a reliable "one click" re-engagement of the stirrup locking and release mechanism once triggered. The inner stirrup arm footplate is constructed of continuous integrated metal.

This safety stirrup has been comprehensively tested and safety certified.