Original owner; bought it for my ETX-90 but never used it. It will fit all the ETX's but is pretty light for the 125 in my opinion. Should be fine for the 60mm through 105mm, though. Permits using the telescope in EQ mode; especially desirable for the original ETX-90 which only tracks when in EQ mode.
For some reason the tray/stabilizer is missing in the picture; it IS included. I accept postal money orders or Paypal (no surcharge). I'll sell for $115 shipped CONUS.