LUXURY BIAN-STONE : The scientific research shows that Bian Stone can help stimulating blood flow?? relax muscle soreness and release positive energy field.</br>NEW DESIGN: with a fingers grip massage hole?? easy to grip and also professional for fingers gua sha massage therapy.</br>COOL TOUCHING FEEL: Polished very well?? The Edge is thin and a little aggressive?? but never hurt your skin.</br>PROFESSIONAL TOOL: Recommended by doctor?? great tool for ASTYM??Graston & Myofascial Release?? reduce muscles soreness?? relief pain and relax joints.</br>DETAILED E-BOOK INCLUDED: Using gua sha massage oil is much better before you practice guasha therapy.</br></br>Product Description</br></br>As a New Patent Design Bian-Stone Gua Sha Scraper Device by Leosense. Its edge is thin and a little aggressive?? but no