A few sets a day and I see the configuration of the abs. At Aikiki I purchased the Ab Carver at a lower price, then it's manufacture. Great piece to loose weight and reduce the chubby stomach. I suffered a stroke and lost partial use of leg and arm. The Ab Carver allow's for my hand to wrap comfortably around the handle.
I'm so glad I purchased this because I stomach haven't been this flat in 20 years! ! !. I saw the commercial for this and thought " this could really work". But I was still reluctant to buy. Over the years, I've tried all types of ABS videos and workouts but this one really works! ! ! Yes, it really works! I would never purchase from TV (not a fan of S&H) and as I surfed Aikiki FITNESS, I saw this (PLUS FREE S&H) and felt it was Karma! I needed this in my life! ! After six weeks of using it about 4 times a week and 10 reps (100), my core is strong AND my upper body is toned! My husband said he didn't know I was as strong as I am.
You may not feel like you are doing much during the exercises, but the next day you will be sore. This ring is just stiff enough to give you a good workout without injuring already strained muscles. I recommend taking it slow and building up repetitions though. I have been using the Aikiki Ring to strengthen my glutes, abdominal, and groin muscles, which were stretched to the max after a recent pregnancy and a long labor. I gave this 5 stars, but I did hear some crackling noises during my first few exercises. If it breaks, I will come back and edit my review. I'm pregnant again, so, I wanted to try to repair as much damage as possible before the next labor.
Other than that it's OK. It's a roomy backpack with lots of extra little storage packs hanging off of it, It has the molle webbing, but it is one really really heavy bag, and that's without anything even in it yet.
There is a lot of cushion and my feet are able to breathe. I really like these, they fit as expected and are really comfortable.