Review on Series 5000 Electric Shavers - Philips SH50/50 Blade Replacement by Emily Morgan

I wanted to completely replace the detachable head for the Norelco 5000 shaver that can be removed from the shaver. I looked at several available replacement head options and ordered one that I thought would replace the entire detachable assembly that can be swapped out. However, I only received three interchangeable heads that fit in the detachable head. I had no choice but to return them. If anyone can point me to a worthy replacement I would be very grateful.