The Swopper Chair by Via is a fun alternative to a standard office chair but there's more to the Swopper Stool than fun.  The active motion of the tension adjustable Swopper improves your core strenth and posture, while providing important nurishment to the intervertebral discs in your spine. The Swopper also assists the lymphatic system and its job of flushing toxins from your body and improving circulation. All this can lead to a more energertic and healthier you.