This necklace is made of natural Baltic Amber beads. The length of the Amber necklace is 17" long and the size of the largest bead is 1” x 0.75" x 0.25". The weight of this necklace is 26 grams. Amber is fossil tree resin, which is appreciated for its color and beauty. This necklace is hand made out of 100% natural and authentic Baltic Amber from Lithuania.