I had trouble finding this item, but Shaver Spares not only had it in stock, it was cheaper than elsewhere. Some firms charge as much as a whole new razor. I ordered it after lunch, and it arrived at 10 am next morning, via the letter box, post & packing included. What more can you ask?
I ordered a replacement shaver head for an elderly friend. It arrived very promptly, is now fitted and works immaculately. My only quibble would be the minute printing on the instructions!