Muji Double Ruler
https://www.muji.com/my/products/cmdty/detail/4549738728931

Case Depth - 15mm.

Suggested print settings:

• Layer height 0.2mm.
• Infill 15%.
• Perimeters: 5.

NOTE
Most of our designs are printed and tested on a Prusa Mini and MK4, so tolerances may vary if you are using a different brand. While we strive for a smooth experience with our designs, we appreciate your understanding if tolerance issues arise.