This coaster holder is designed to be minimalistic, classy and practical at the same time. It fits popular 3d printed coaster with a diameter of 10cm / 4" and has an inner height of 2.4cm / 0.94" to store multiple coasters. It has some decent tolerance and a wide opening on two sides to make it user friendly enough to take the coasters out. 

The option of a smooth build plate is ideal for those who prefer a sleek finish, especially when using decorative silk or multi-colored filaments. On the other hand, the "fuzzy" build plate option provides a unique texture that enhances the tactile experience and adds a premium appearance to standard filaments.
 

The EM2024 coaster I've been using for the pictures can be found here => https://makerworld.com/en/models/463431