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Title: It's a pain in the neck!
Review: We've had this device for a couple of weeks and I have my doubts as to its ability in firming abs. It does a good job of stretching the back, but in doing so, wreaks havoc on my neck and makes me feel like I've been on a roller coaster. It does not come with much instruction and I have attempted to try it several different ways including adding more support for my neck. I am about 5' 4", so perhaps this device is simply not built for me. My son, who is 6' uses it to stretch his back and the frame fit seems more suited to his size.
