Amazon: Customer reviews: Dragon Door Ab Pavelizer II
This Ab Pavelizer lets me get awesome core practice by myself. I also like to challenge my fit friends and family to do one, and they can only do a "crunch." This tool lets you work your abs in such a way that you will know how to contract your core correctly and more powerfully than any other method (outside of having a partner). 9 people found this helpful. Helpful. 0 Comment .