Great help for arthritic hands.
I have difficulty turning off my bedroom lamp because of the proximity to my bed and the size of the knob used to turn off the lamp.  I had seen one of these in a catalog of items for disabled people so decided to see if I could get it on Amazon.  It was easy to install and requires very little effort to switch off the lamp.  I can reach it more easily than the original knob, only having to flip one of the "propeller" shaped blades.
Rating: 5 stars