Review (1/5): Don't buy these cartridges at these ridiculous prices - refill your old ones!
I have a Philips Norelco Razor since many years and always bought the cartridges from Amazon. Now that Philips discontinued this product, some people in France and Japan try to sell their remaining stock for ridiculous prices. You are better off buying one bottle of "Philips Norelco HS8000 Nivea for Men Shaving Conditioner Refill Pack ", which is available for the next Generation of Norelco razors. You can pump the liquid from the bottle into an empty cartridge and then use that as before in your razor. The bottle will allow for many refills of the cartridge. If you still have a few cartridges don't through them away but keep them for being refilled...