Experience the next generation of balance training with the BOSU® K-Series Balance Trainer — our lightest model yet, designed for maximum portability and performance. Weighing just 8 lbs, this trainer features a soft-touch surface for superior comfort and an anti-slip grip base that stays steady on any surface. Perfect for home, gym, or travel, it’s easy to assemble and ideal for enhancing strength, stability, and core control wherever you go.