3M(TM) Trizact(TM) Film Belt 272LA, 6 in x 168 in A10, 5 per case For glass defect repair, corian and acrylic solid surface finishing. Precisely shaped pyramids wear away continually exposing fresh abrasive. Few processing steps, higher gloss level, effective surface leveling. 6 in x 168 in A10 Grade, 5 per case.