Description: Help you to correct shrug, arched back, and bent spine. Corrects dance pose, improving body flexibility. Good for coordination and balance development and endurance training. Help train your muscles effectively. 8 loops design, provides ample room and resistance for choice, meets your needs. Perfect for men and women fitness training, like yoga, squat, knee raising, Pilates, muscle stretching, gymnastics and etc. Good elasticity, long service life, for daily training use.