Bonus Stability Ball Ab Routine! Cathe has even filmed a BONUS ab routine for the Butts and Guts workout that uses a stability ball. With the bonus footage included this DVD has well over 90 minutes of footage. Post navigationYou Will Love the Ab Workouts!Butts and Guts Lower Body BreakdownLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName * Email * Website This site uses Akismet to reduce spam. Learn how your comment data is processed.