where can i find this?

you're my "saviour", all other pieces of pavement/asphalt are not working for me, but your one works perfectly and I use it so much. Thank you

Where in the game do I find this? I can't see it anywhere.

This is the pavement surface, though. And not asphalt. But it works like a charm. Actually, as of today it seems like these are the only "ploppable" surfaces that actually work in the game without too much hassle. Please consider making more of these for other surface types :)