I asked the supplier several times for more precise information as to wether or not these rails were compatible with the rollers I was buying.I think my sliding doors will work but these are not the most suitable rails for the rollers I bought.
It was very difficult to choose this product & to see if the different elements went together.I wrote to the seller but the correspondant clearly didn't understand my questions. I ordered one set of rails first to be sure & the rails correspond, but it would have been better to have known from the beginning which rails go with which wheels. I haven't fitted the doors yet but the quality of the product seems O.K. The store was very kind & made a lot of effort to answer my questions even if the correspondant didn't understand.