Measurement instructions: All bracelets are made in size ranges. Please measure your wrist and choose the size range closest to your size before adding the item to your cart. For an exact measurement, use a measuring tape. Make sure the measuring tape is firm around the base of your hand. Alternatively, you can use a string or strip of paper. Wrap it around your wrist, and use this length to measure against a ruler. Sizes displayed are in inches. Natural properties of the stones in this bracelet: Amethyst: A type of quartz, helps with physical ailments, emotional issues, helps to cure nightmares, calming, reduces stress and anxiety. This is a stone of spiritual protection. Helps empaths follow their intuition so they can better distinguish their feelings from the feelings of others. Wenge Wood: Indigenous to West Africa, this wood gives off very relaxed energy, encouraging slow, even thought. A perfect tool for meditation, especially for those who have trouble slowing their thoughts. Calms tempers and encourages learning.