Single length tunnel
Use on any straight module from the single to the tripple.
Easy assembly with or without side opening.
To open side cut tabs with a blade.
Total size 12.125 x 5.27 x 3.072
Free STL 3D printable portals are available for download from Sumner at
https://www.thingiverse.com/thing:6016377
T Trak Module tunnel
