03-18-2015, 05:42 AM
Try this.
https://www.udemy.com/the-50-craziest-ab-exercises-youve-ever-seen/?couponCode=50crazyfree&siteID=7_DmdDL.s8A-Rfl6nv7vGNQIJo6Kk_6_ww&LSNPUBID=7/DmdDL*s8A
https://www.udemy.com/the-50-craziest-ab-exercises-youve-ever-seen/?couponCode=50crazyfree&siteID=7_DmdDL.s8A-Rfl6nv7vGNQIJo6Kk_6_ww&LSNPUBID=7/DmdDL*s8A