This is a heavy-duty brown plastic knob for top vents or sun roofs.
It has a 1/4 inch long shank.
It is internally serrated to accept 5/16 inch spindle size.
This product is sold as a pair and priced as a pair.
You will receive 2 handles
This product is similar to or the same as the following part numbers in these brands:
Prime-Line Products: R 7005
Strybuc Industries: 743C-Blk