Name of Part That Connects Blinds Wand With Blinds Roller and How to Replace It?

Question

I have blinds where the part connecting the blinds roller and the blinds wand is broken. The part looks like:

What's the name of this part? How do I go about fixing / replacing it?

Answer 1

Looks like a "wand tilt control".

http://www.fixmyblinds.com/vertical-blind-tilt-controls-s/91.htm