Joseph Pilates developed the family of Pilates Apparatus to help support those of us who might have tightness in our bodies that inhibit the engagement of the muscles needed to really make lasting changes in our posture, pain levels, ease of movement and joy of living. The Arc Barrel is one of those pieces of equipment that supports the body through the Mat work and beyond. In this combined class of Tower/Springboard and Arc, you'll up get both the deep core support with the added spring resistance. If you try one of these classes you'll thank yourself.