Size: 7" average Materials: Flex metal Gemstones: 6 mm & 8 mm Amethyst: is a meditative and calming stone which works in the emotional, spiritual, and physical planes to promote calm, balance, and peace. It is also used to eliminate impatience.Amethyst can work in strengthening the immune system. It also is said to bring emotional stability and inner strength. Citrine: increase self esteem, protect from the negative energy, open the mind to new thoughts, promote clarity of thought. Citrine is sometimes used by healers to help with digestion as it is considered beneficial to the endocrine and digestive system - cleansing, purifying and eliminating poisons that have built up. Citrine is an excellent stone to calm and soothe distressed conditions. Some use it to help relieve depression, digestive problems (including constipation and diabetes). It will give joy and love to the owner. What is a Flex Bracelet: It is Stainless Steel Flex wire - kinda like the toy called Slinky was made from. It adjusts to all wrist sizes and you can bend it without breaking it. There is a hook on the back of the bracelet to secure it closed - see one of the pics.