... company produce pilates ring, yoga ring,ab fitness, pilates power gym,ab gym,sports equipment,gym equipment china king fitness ... company produce pilates ring, yoga ring,ab fitness, pilates power gym,ab gym,sports equipment,gym equipmentFeatures:1) 12" ... AB muscles3) Develops core abdominal muscles and back strength4) Enhances mobility, agility and stamina5) Improves overall fitness for sport and ...