Handmade. Tourmaline natural gemstone beads, is tested by jeweler 100% real. Elastic stretchable. Length / Diameter: 17 cm Size stones: 9.0 mm x 9,0 mm Weight: 33,2 grams Tourmalines can also be found in all colors of the rainbow. Tourmalines possess a genuinely magical phenomenon that will amaze even the most cynical person. 18th century Swedish botanist Carl Von Linne, who invented the system of naming organisms still used today, called tourmaline "the electric stone." Tourmalines are a high quality gemstone much sought after by jewelry makers. They range from the simple black much loved by those with a spiritual bias to the almost impossibly expensive and flashy neon blue Paraiba tourmalines found in the most exclusive jewelers. Tourmaline is also highly regarded in the spiritual realm. It brings healing powers to shamans or medicine men. It is what is called a “receptive stone,” which means it is soothing and calming, magnetic and spiritual, promoting meditation, wisdom and mysticism. Tourmaline Virtues The Receptive Stone Calm and Serene Balance and Understanding Flexibility and Strength Inspiration and Compassion Happiness and Positivity Protection and Purification Grounding and Perspective Shipping registered.