Obsidian is volcanic glass that forms naturally. It comes from the rapid cooling of felsic lava. Obsidian is naturally black in color and has a glassy texture and a vitreous luster.Obsidian is hard and brittle and was commonly used for tools. The meaning of Obsidian is safety and grounding. Obsidian Gua Sha Jade Roller Sets are one of the best-selling skin care types of YLELY brand. They are totally hand-crafted for facial massage. As a leading Obsidian Gua Sha Jade Roller manufacturer, wholesaler and exporter, we insist on the best quality to return the trust to our customers. They have been exported to over 70 countries and well received. If you are interested in expanding your product line or starting a new business, please do not hesitate to contact us and we will do our best to meet your requirements. Customized products & package, free sample, OEM, certificate, shipping with and without tax are available.