The file 'WallTracks Base Set – Improved Base 3D Printer Model' is (stl) file type, size is 22.0KB.
Scaled the base to 103% (size 1.03) on Autodesk Fusion 360 just in case you missed the scaling up to 103% part while reading the summary on https://www.thingiverse.com/thing:4764110.
WallTrax-Base-v7.stl | 69.8KB |