This product includes ten replacement hinge components (part numbers 302S018610 and 302S018620), designed for use as an upper low hinge with the following models: M2040, M2135, M2540, M2635, M2640, M2735, P2040, P2235, M5521, M5526, and P5021.It is intended for maintenance and replacement applications requiring functional accuracy and consistent performance in industrial and commercial settings.