Included: 1 (one) Black Tourmaline beads knotted Choker Necklace 1 (one) Black Tourmaline meaning card 1 (one) gift box Who can wear this necklace: Men and Women Size: Adjustable One size fits most - Slide knots from each side to desired fit Adjustable length from: 16" inches (41cm) to 32" inches (81cm). Measurements: Cord diameter: 1.5mm (0.15cm) Bead diameter: 8mm (0.8cm) Materials: Premium quality Black wax Nylon Cord Natural Black Tourmaline Natural Gemstone Disclaimer: Given their nature, all Gemstones and Crystals are one-of-a-kind pieces. Photos may be slightly different from actual items in terms of color and size due to lighting and settings during photo shoots or monitor's display. All properties attributed to the gemstones sold by Luck Strings are based on books and old traditions. The products and information we provide are not intended to diagnose, treat, or prevent any disease, nor replace professional medical advice.