This is a heroscape like compatible tile. slightly different to avoid infringement. But fits with the heroscape tiles. I designed this so that those making mountains or hills can cheaply make a skeleton tile to use for stacking. no need to have a whole tile for stacking. also this makes a good "cave" as you can remove the top layer and have figures inside. basically these tiles are getting harder and harder to find.and printing the full tile is not usually cost effective.

One picture shows 5 skeleton tiles on top of each other with one real heroscape on top.
The filament I used that seems to match the heroscape color almost exactly is inland premium seriese light brown pla from amazon.