"Stott Pilates: Pilates On The Stability Ball" - Disk 1: "Dynamic Balance" - "Dynamic Balance" is an intensely satisfying workout that simulates some basic moves often performed on a Reformer the primary piece of Pilates resistance equipment. Challenge your balance, activate your abs, stretch your spine and have a ball doing it. Master Instructor Trainers Moira Merrithew and PJ O'Clair motivate you through an invigorating mind-body workout that focuses on flexibility, coordination and good posture the building blocks to functional fitness. Disk 2: "3-D Balance" - If you've mastered the intermediate Stott Pilates exercises on the Stability Ball, you're ready to pick up the pace with "3D Balance." Internationally acclaimed Master Instructor Trainers, Moira Merrithew and PJ O'Clair, coach you through an intense workout using the Stability Ball to gain muscular control, flexibility and alignment. Number of exercises: 66.