It is a set of sand mats and sandpaper that can be attached and removed with a hook and loop type.
Internal thread diameter: M16
Contents:
1*hook&loop backing pad,
2*sanding disc with grit 60,
2*sanding disc with grit 80,
2*sanding disc with grit 100 ,
1*with polishing pad. Max RPM10000
Packing: Poly bag