Hotwheels track joiner

thingiverse

I was unable to find a replacement anywhere else. So I measured the dimensions of the ones we had and created an exact replica. This piece is often used in Hot Wheels sets to connect track pieces together. Once misplaced, this item became irreplaceable - until now. I'm not sure which specific Hot Wheels sets work best with this part or what its official name is, but if your missing piece resembles this image, then it's likely the correct one.