$10

During the video shoot for the video exercise library for the book Abs Revealed, Jonathan and Bill Sonnemaker took turns unleashing 10 of their favorite original exercises on each other and filming the result. You get to learn new moves while watching two award-winning fitness professionals challenge each other. You’ll hear every grunt and see every grimace – all while learning some great new moves!

(After checkout you will receive an e-mail with instructions to download the MP4 video file.)