These thin heishi beads come in fun bright colors and are perfect for color-blocking designs. Use a few in a design or use the whole strand! Also referred to as African Vinyl and Polymer Clay, these beads were originally made from vulcanized rubber. Recent testing shows that many are made from other materials including upcycled vinyl records. Just think.you could be creating your jewelry designs using albums from your favorite musical artist! Hole size is approximately 2mm. Sold by the 15-16 strand, there are approximately 325-365 beads per strand.