Casement opener and handle

I'm afraid I don't know what it is you need. This is a photo identification service, so the best place to start is with a photo of the parts in question.

Assuming you need a casement window operator, please remove it prior to taking your photos. These can be difficult to identify while they're still installed, in some cases, so the more of it we can see, the better. Removing it for us will save on a lot of back-and-forth.