Renfert Rolloblast Abrasive.  This is non-abrasive glass beads for smoothing and condensing of surfaces.

Advantages:

• Guarentees silky matt surface with no light reflection
• For the finest surface treatment of precious and non-precious and non-precious metal alloys
• Does not cause silicosis

Item #15891005 is Rolloblast, 100 µm

Item #15941305 is Rolloblast, 500 µm