Product review (4 stars): Not perfect, but good enough
These are non-original replacement parts, but they fit perfectly. I only used 2 of them to replace the front rollers, since one of those was always acting up. The two rear were fine. I did notice that there is a little play in the roller on the shaft. I don't know if this will cause problems, but OK after 3 months, plus I nave 2 more, just in case.