MiniDuos are mini version of 2-hole SuperDuos. They are Czech glass beads, 1/4 of the size of a miniduo and have a tapered petal shape.  They work well in bead weaving and bead embroidery patterns and are very popular in earring designs.  Sold in an 8 gram tube, there are approximately 112 beads in a tube, depending upon the finish.