Library Living Technology to lose weight only on stomach Chukyo no Bunko

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Home Economics and life environment studies
Life and Living
The reason why the belly comes out and becomes loose was because of the "posture"! You can tighten your belly instantly just by adjusting your posture in daily life without abdominal exercises or dietary restrictions, and using your trunk muscles. When you finish reading this book, your belly will surely be dented!