This is a fantastic tool for precision sanding.
This mini disc holder is made of hard rubber and is mounted on a 3 mm shaft.
Its material allows just the right amount of flexing for precision sanding jobs with your Dremel tool. The pad is 20 mm diameter ( 3/4" ) ad is equipped with a permanent velcro base. This will allow you to fix any type of velcro based sanding pads.
The disc holder comes without any sanding paper, but these are super easy to cut with a pair of scissors in any type of velcro backing sanding paper.