I unfortunately had to find that the manufacturer GLORIA under the same model designation provides two different devices. The difference is in the manual operation. This I got to my order from Amazon comes in a plastic axis not corresponding to the Amazon Photo. After using 3-times the handle fell apart because the plastic fastener was off-sheared. I had an older Gloria device (over 10 years), in which said part was designed as a metal pin I have no complains towards it directly by telephone at GLORIA and got out a new manual override with metal pins sent free of charge.