Crown Sporting Goods Ab Wheel With Dual Non-Skid Wheels And No-Slip Comfort Grips, PinkCut abs and a strong core are beautiful things. But let's face it: nobody likes sit ups. And without a partner to hold your feet in place, they get messy and inconsistent. Of course there are dozens of bulky, overblown ab machines out there, but there's an easy and economical way to sculpt your abs, arms and back, all with one handy piece of equipment that fits just about anywhere: an Ab Wheel. Unlike a lot of expensive ab machines on the market, ab