This is a 0 Y-Offset probe mount for Sprite extruder.
You can only fit this with extended hotends.
I have only tested this with TriangleLabs CHCB-OT hotend and it works perfectly.
If you have genuine CR Touch or BL touch, get a 10mm version, if you have a clone get a 8mm version
The author remixed this model.
The original mount was designed for a stock hot end so the extended hot ends needed a spacer.