Do you sit a lot at work or at home? 
A great soulution for tight, closed hips. Guaranteed results within 14 days of daily usege of 10 minutes.
Your standing Yoga postures, for example, Trikonasana, Parsvakonasana, Viradadhrasana 1,2,3, Vrksasana and forward extentions that need hip openings will improve quickly.
A good yoga investment.