Thank you for viewing our products! ✨ This is a bracelet made with 10mm tourmaline beads. Tourmaline comes in a wide variety of colors. It has a diverse range of hues, including colorless, purple, blue, green, yellow, brown, red, pink, and black. The rich color variations of tourmaline are said to be the most numerous among power stones. It is also one of the birthstones for October. The inner circumference is 15.5cm. It is made with four strands of stretchy, durable, and flexible nylon elastic cord. *Regarding size adjustments, we can only offer free size reductions due to the lack of stock for additional stones. ⭐️We offer discounts and free gifts for bulk purchases of bracelets! ✨ If you purchase two or more items, you will receive a free bracelet and a discount. Please purchase through "Request to buy in bulk." Example: Purchase 2 items...100 yen off Purchase 3 items...300 yen off Purchase 4 items...500 yen off