jd94
Awesome work!
this is Marker holder for Penbrush or Airbrush use m3 blot and nut to secure it. compatible with almost all size or Penbrush/Airbrush. use Marker with Felt tip.
to see how it perform, check this video link https://www.facebook.com/dennys.wang/videos/10155841079344791/ or https://youtu.be/Vbcmwe9F-IY