About this 3D model
4.6 x 4.6 x 3.45 in. To fit your coaster, reshape the holder in a slicer or design software such as Fusion 360 or Tinkercad. The coaster I used in the thumbnail is a modified Pallet coaster by madizmo. Link here: https://www.thingiverse.com/thing:3985834 Very simple prints with no overhangs. Enjoy!