This product is unreal. It works wonders on your back and hips. You’ll hit tight spots you never even knew you had… Best $40 I’ve ever spent
http://www.fitter1.com/Catalog/Items/BKNOB.aspx
http://www.fitter1.com/Catalog/Category/11/MassageAndTherapy.aspx
it’s actually a lot bigger then it looks… probably about the size of someone’s arm. Check the second pic.
Certainly if the end of the tool that the demonstrator is holding can be twisted downward, there might be more to “relieve” than can be had initially (from the female perspective)!