She never used this
I don't want to give these a bad review but I also don't know how well they worked. My ex used my Amazon Prime to buy them and like all the other exercise equipment or cleansing supplies or health foods she bought she never used them. Walking sticks, a trampoline, a bicycle, edible clay, a juicer, multiple cleanse diets, exercise CDs, giant rubber bands, vitamins, special electrolyte filled drinks were all purchased and ultimately thrown out or put in a garage sale.  Reading about them and learning how to use them or what a life changing impact they will make in her life was as much of a commitment as she could make to them. After they arrived and she realized they required work she lost interest and went on to the next thing. Maybe her lack of ability to commit to things is why we are no longer together.
Rating: 3 stars