Skull Tree Hematite Lava Stone Bracelet It is made of flexible wristband rubber. 17-19cm. Please specify if you have a different wrist size. It is made of hematite stone and lava stones from skullcap tree. It is a very stylish design. It can be used alone or combined with combination bracelets. As with all our products, this product is also sent with a gift bracelet. Please keep it away from chemicals as it is a type of tree in the structure of the product in order not to deteriorate.