Kombipack for foil shaver F7790

I am satisfied with the goods, throw better than the whole shaver. What's a little disappointed me the price of a product that can be manufactured in bulk and designated based on its components as a waste product. (Cheaper plastic and some metal) I'm curious how long do the part, titles, or film cracks again bekommt.Gegenüber the initial already on the weight and quality of the knives ago I think cheap goods.