Our Natural Stone Bracelet is 100% handmade. It is hand woven with parachute rope, which is resistant against water, sweat, and parfum. So you don't have to take your bracelet off when you take shower, bath, swim or at the gym. It is not to be mistaken with rubber bracelets which can break away easily! Nevertheless we recommend protecting the stones from such factors considering the sensitivity of each stone which can be different. The list of the materials and natural stones we used; - AAA Quality Hematite Stones - Parachute rope - 925 Silver Clasp Important: Please consider that the colors of the stones may vary from the pictures, because we only use 100% real natural stones and they always have some variations in nature and we adore this variety! Details: ◇ Sporty look, perfect