TRNR Gym Ball, Anti-burst Exercise Ball Size:65cm Patented QuietGlide™ technology

Patented QuietGlide™ technology

lower body work and core strengthening exercises

Level 4 in the Self-Fit range

avoiding damage to the floor because they have a more significant rebound

• Ultra-wide ab roller with built-in resistance and ergonomic handles to help maximize results of ab roll-out exercises

TRNR Gym Ball, Anti-burst Exercise Ball Size:65cm Patented QuietGlide™ technologyTRNR Gym Ball is a must have training tool, delivering greater core strength, balance, coordination, range of motion, joint stability, and postural alignment. By adding instability to your workouts, your deep abdominals, back and pelvic floor muscles have to work harder to keep you in position. This makes it ideal to strengthen these often neglected muscles, preventing muscle imbalances, back pain, and injuries. Though specifically designed for core