Sorry Mudski _ my mistake. Mine are height adjustable. The end of the belt just fits straight into the height adjuster. The only way you can tell it is not an OEM belt is that the buckle is slightly different to a Nissan one. As I said before, I have heard all the tales about webbing and cleaning, etc. None of them are the real problem and none of them work for long. The Nissan retracting mechanism is and always has been CRAP. The only way to fix it is with a replacement. As I am in Western Qld at the moment my ability to post photos is limited. I'll post one when I get home.