The needle just goes up and down once with each rotation - perfect for a little girl, although there's no needle in it yet. (She doesn't seem to care!) The picture of the knob on the redeye was what I bid on as pictured NIP on eBay - I received the silver out of a package in rolling around in a box instead - paper work with it said it was NIP also. I'm not sure how to leave feedback. It does work and I don't care about the looks (I don't think aluminum rusts), but it's really not what I expected. Here's a picture as advertised: