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: Black Onyx: This is a powerful protection stone that absorbs and transforms negative energy. It helps to prevent the drain of personal energy and it aids in the development of emotional and physical strength and stamina. Rose quartz: The stone of universal love. Restores harmony in relationships, encouraging unconditional love. Purifies and opens the heart promoting self love, friendship, deep inner healing and peace. Ebony Wood: It is believed that this wood amplifies magnetic energy and it’s revered as the most powerful and protective of wood types. Ebony is a symbol of protection and power, likely due to its dark color.