I trade the razor / films on my Panasonic shaver every 6 months and am very satisfied. For me, the Panasonic's pleasant and "unattractive") than any competitor. Only - as usual - a little cheaper you will love these wear parts be. I can hardly imagine that the material and manufacturing costs even remotely justify the selling price. Nevertheless, they serve their purpose very well, so I like to give four out of five stars.