This is an overlay for Azul's player board that keeps the tiles in place. It covers all of the board and stretches over the edge of the board to keep it in place.
It looks really good when printed with transparent filament. If you can print transparent PETG, then go for it :-)
Since the score track would need really, really thin walls, there are only walls on the horizontal. The Score Cube fits really tightly, and should be held in place anyhow.
There are two version, one divided into several parts for small printers, and one large, one-piece version.