The Acavallo Equestro Junior Stirrups New Edition are crafted with an innovative combination of metal and polyphenylene sulfide materials whilst it is designed with a patented and lateral opening by using a patented injection moulding technique to ensure both quality and performance. The outer Acavallo Equestro Junior Stirrup arm allows for safe unlocking and pivots to the outside in the case of a fall or emergency to enable a substantial release. Whilst the opening of the locking and release mechanism is specifically positioned a centimetre above to ensure the foot doesn't slip out unecessarily and to stop debri and dirt from the riding boot blocking the opening of the arm.