see, indeed. It’s been so long since I bought them, I don’t know if they were new and since then some wear has occurred, I suppose, even if they have a plastic protection, like a transparent cap in front. One was bought from Soundsmith and when I serviced my Beogram 4000, a black one from them was installed. I use a brush designed for this purpose to clean it, always being careful before listening to a record that I am cleaning. Should I carry out like this the same maintenance for these two reserves? Or how? And if one day I have to change the cartridge, I will ask a professional before touching anything for fear of breaking something, it is better.