80mm dust shoe.

This Dust shoe is for 80mm spindel. it use magnets to keep the brush in place.
Magnets are ø8mm x 3mm brush you can find on amazone. the slice for the brush is 5mm wide.

Links:
Brush:
https://www.amazon.de/gp/product/B077GRV2RL/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1

Magnets:
https://www.amazon.de/gp/product/B074C79DJS/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1

https://youtu.be/2fT79sLd4h0