Made of Hematite which is said to have very strong grounding energy. You can feel that just by holding the stone in your hand. It also has a cooling and calming effect, as well as helps develop concentration and focus. Overall, hematite brings a quality of energy that is powerful, strong and grounding. This bracelet measures 19 cm and weighs approximently 25 g. If you want to a fashionable bracelet then this comfortable fantastic looking Black Magnetic Hematite will be your best choice. This bracelet has great a looking. Convenient to wear. Will go with you anywhere in style.