Natural Stone Exquisite Tourmaline Water Drop Size: Large Bead 5mm*7mm*Thickness 2.5mm*32 beads; Natural Tourmaline Round Bead Size: Diameter 3mm; Necklace Length: Approximately 44cm; Metal Fittings Material: s925 Silver, stamped with s925. Comes with a bag, product number A3536, weight approximately 10g; Tourmaline has slightly different vibrations depending on the color of the stone, and the direction in which it exerts its power differs, but basically, it is said to help the wearer to blossom their inherent abilities and human charm, amplify positive energy, and support them in shining in their own way. Tourmaline has another major characteristic in addition to its various colors. The crystals of this stone are columnar, but the properties of both ends are different, positive and negative, which causes them to become charged (electrified). Similar properties can be seen in quartz, but tourmaline has a stronger version of this property, and it is called "electric stone" in Japanese. Tourmaline itself does not generate electricity or conduct electricity. If left alone, it is just a stone, but it is said that when rubbed (friction) or heated, it becomes charged and generates static electricity (negative ions). Therefore, if you want to take advantage of this property of tourmaline, we recommend wearing it as a necklace that directly touches the skin. * All stones used have been purified. ■ Due to the shooting environment, the color of the photo may look slightly different from the actual product. Instant purchase OK. Thank you!