That go on the metal supports of the top bar assembly. They rest on the
"roof" of the car when the top is down, under the top on each side, and can
be seen left and right inside the vehicle with the poptop closed. The
rubber covers, squarish and thin to fit over the metal part, keep the metal
from banging against the roof when going over bumps. I finally traced a
thumping noise down to a missing one and it starts up again when the
padding I stick in there falls out.

Anyone have one to spare?

Thanks,

Jim