Yes, I agree a bristle would be best. I have seen that in
company conference room tables. I haven't been able to locate
any place that sells only the bristle strips. Suppose I could
buy a wide broom and rip it on the table saw... :-)

William Deans wrote:

Greetings,

The best material for this space is a very course thick bristles like are
used in tooth brushes. The bristles should stop something from falling
through the crack but be flexible enough to force a wire through by hand.

Hope this helps,
William

"TP" wrote in message
...

Putting in a new counter top, on a built in desk. Walls on back
and sides. Old top had a large hole to run wires down to the
computer, power, etc. I would like to leave the top approx. 1 ½
inches away from back wall to easily drop wires down. I’m
looking for some suggestions on a material to fill that gap?
Something like foam or rubber that could easily be slit, and a
wire could be fed thru it. Any suggestions?

Thanks
TP