Ab wheel is one of the most effective exercise on abs. This exercise is for strengthening the core ab muscles. This is not for burning your fat. If you have a big stomach then you must change your nutrition habits and do cardio to loose that fat. Once you loose the fat you will start to see the abs. But you need these ab exercises to strengthen your ab muscles. These videos below demonstrate how to do ab exercises.
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Best Six Pack Abs Training Book with lots of workout routines to get six pack abs efficiently with great meal / diet plans to cut those extra calories and get awesome six pack abs.

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