The most powerful and comprehensive abdominal circulation training! Carry out circular and repeated exercise stimulation to the entire abdominal muscles in different parts, without any dead ends. 10 reps of each action, one round every day. After doing it every day, you can feel the burning feeling in your abdominal muscles. After four weeks, you will be able to feel the strength of your abdominal muscles. Don't envy other people's gorgeous abs because you can't see their hard work.
