"Improve Lower Back Pain! Straddle Stretch" Japan Stretching Association Price: ¥880 I purchased this for my health, aiming to improve my posture, blood circulation, and metabolism. I've become able to do the straddle stretch, so I'm putting it up for sale. There are creases from opening the book and using it. Therefore, I've marked the product condition as "slightly damaged." Otherwise, there are no noticeable scratches or stains. #Gonsan'sProducts #JapanStretchingAssociation #Book #Lifestyle/Household