akrowheels ab rollout

[SurvivalTrainee]

but if you go just till comfortable you will never really develop muscle no?

[SomeWhatBigDaddy]

...W...T...F?!?!?!

[tyciol]

This is a neat alternative to the traditional bilateral single-wheel ab/core wheel.

I'll still use my old one, but I'd try it with these too. I think they hit stabilizers differently.