Mostly jaspers, but also other stones and rarely other materials like glass and ceramic. LOTS of colors, shapes, sizes. Order multiple strands and we'll send you a variety. Yes, some will be dyed. It's as American as chop suey, chop sticks and chopped liver. 14 - 16 inch strands temporarily strung (claspless). This price is only for internet, phone or fax orders but not for drop ins. The drop-in price is a straight $3.50.