Cyclone fence privacy

Does anyone know where to get the slates that slide into cyclone fences to give you more privacy or another type of attachable cover?

I just folded a tarp (lona) to fit and wired it up. My reason was my dog barks a lot less if she can't see people passing in the street. That's even with my good iron gate, not just the cyclone double car door.

It comes in large rolls sold by the meter and is available at most hardware stores.

We used shade cloth against it and attached the cloth by making small holes with an awl and using very thin small ripties purchased at Prisa in Ajijjic.