I picked up a smaller set of these at a home store (Home Desperate).
I have no idea if they still stock them. These were maybe 3" wide,
with interlocking tabs on the ends, they also have lips to keep the
feet on track. They were not expensive. If you don't find any
locally,
and assuming I can find my own, I'd be willing to send them your way
for the cost of postage.
--Glenn Lyford

Abrasha wrote:
I am having trouble finding a tool,
It consists of two strips of milky white plastic (teflon?), which are
approximately 8" wide and 36" long.