Check out this great video produced in 2015. It sums up the MyoReflex Roller. YOU NEED ONE!
A unique muscle roller, made entirely in the USA of high quality materials and designed to dig deeply into hard-to-reach areas of muscle and fascia. Designed by Dr. Scott Hadley.
This info would cost about $500 in my office, but you can get it here for WAY less! More than two hours of instruction in running form, pain mechanisms, key muscles, and self treatment. Don't want to pay my office fee? Here is another option!