Filament: Clas Ohlson- Generic black PLA, variable layer height 0.1 - 0.3mm.
2024-08-16: STL-file updated (1.1). The underside was not completely planar. It is now even easier to print.
The author remixed this model.
I drink too much tea, and needed a slightly larger coaster for my teabags. Original was widened.