I just want to flatten my stomach. This book is easy to understand for anyone who feels the same. It introduces an ab-slimming method that can be done anytime, anywhere, with the simple "just flatten" movements. [Condition] ・Used book ・May have minor scratches on the cover ・The inside is relatively clean and there are no problems with reading [Recommended points] ✔ OK even if you're not good at exercise ✔ Focused on the abdominal area ✔ Short-time, easy method Instant purchase OK! Thank you for viewing.