This fiber optic face plate has not been polished. It has 8 sides and is 40mm long by 38mm wide by between 5 and 11mm thick (if thickness is important to your project just leave us a note in the comments section with a thickness range that will work and we'll do our best to accommodate you). Great idea for this raw material is to break it up into smaller pieces and polish it. It makes very nice looking jewelry.
