My experience is the same as the one above ***. I only used the new part, after installing it for one week when while cleaning it, the head frame with hinge came out of the razor. The metal hinge, only held in by two small plastic tabs, which broke, allowed the entire head to fall off. With the plactic tabs broken, the metal hinge will not stay in allowing the head to not be able to be attached making the razor now useless. Poor cheap imported parts! I doubt whether Shaveroutlet will replace the entire part as they will say I was too rough and mishandled it which was not the case. Well, live and learn! I am not happy with the quality of the replacement parts -- Barry