You are buying a new old stock NOS Ford switch. The knob was separate from the switch in the bottom of a box but the knob screwed onto the shaft, so I am selling it that way. The knob pulls out so it seems like it would be off and on with nothing in between. I believe it is unused. Check to make sure it is right for your needs. It is in very good plus condition. This part came from a Ford garage that closed in the early 1960's. I combine shipping on multiple purchases.