POLIXING STIX30 Count PolishingStiX turns a simple material into a professional modeling tool! Each matchbook set contains 6 PolishingStiX in grades 3200, 4000, 6000, 8000 and 12000. PolishingStiX is real MicroMesh laminated to a stiff pliable polystyrene backing. You can trim each stick to fit any minute detail requiring the same polished surface the rest of your build demands. The plastic backing allows you to dip PolishingStiX into water for cleaning and reuse