Symmetric: approx. size: 16 3/4 - 18 1/2 or Asymmetric: approx. size: 17 1/2 - 18 3/4. The kit contains various Toho seed beads, Czech fire polished beads, glass pearls, a semiprecious black agate faceted bead, a filigree center and all the findings and stringing materials you will need to create this elegant necklace. The kit often includes a few extras of the beads in case one gets lost, and the instructions are concisely illustrated and color coded.