House Brand Brand discs for finishing and polishing of composite restorations are composed of abrasive discs and a pop-on mandrel that provides agility at side inversions of the abrasive surface, as well as in disc replacements. Available in 3/8" and 1/2" sizes and four grits, identified by color, Coarse (Dark Green), Medium (Light Green), Fine (Yellow), and X-Fine (Beige). Feature and Benefits: X-Fine discs are very flexible and versatile Four grit system, color-coded Thin, Flexible DiscsSystem Kit: 120 Assorted Finishing and Polishing Discs, RA Mandrel