Lauren has used the foam roller in her work with private clients for over 15 years, so she has tried every roller  worked with OPTP, which is the largest manufacturer of physical therapy tools and equipment in America, to develop her signature roller and travel roller.  She tested many types of material to come up with the perfect density foam for her method.  The roller also has small bumps on it which aid in stimulating the skin and promoting blood flow and lymphatic drainage.