This is a bracket to mount the Greg's Wade's accessible extruder horizontally. This was designed primarily for mounting to inside of a delta printer top triangle with 2020 profile.
It has screw holes to fix it from two sides (top and side) of the profile for improved stability.
Works at least with this version of the GWAE: https://www.thingiverse.com/thing:1596809
Correct printing orientation is with the largest area touching the build surface (90 degree rotated from the Thingiview preview).
Drill the profile mounting holes to accommodate M4 screws and extruder mount holes to accommodate M5 screws.