A health book that introduces a method to triple the efficiency of abdominal exercises. I've only read it once or twice! ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ I also have many other university entrance exam reference books for sale! I will offer a discount for bulk purchases! (Discount of 100 yen per book) (Example) 2 books: 200 yen off 3 books: 300 yen off 4 books: 400 yen off... ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ - Title: Ab Revolution - Author: Nakamura Shonin - Features: Introduces a method to triple the efficiency of abdominal exercises - Diet effect: Aiming for -4.9kg with 10 types of abdominal exercises Thank you for viewing.