Amzdeal bands (black) Multiple Uses---Resistance strength bands offer effective strength-training and muscle rehabilitation. Arms, back, shoulders, legs, and butt are suitable for functional training, yoga, and physical therapy with resistance bands. Natural Latex--- resistance loop bands are made of 100% natural latex with good elasticity, strong strength and durability. No harm to environment and health. Meet more needs---stretch exercise bands has 4 set of varying resistance levels. Bearing pulling force: Red for 15-38 lbs, Black for 25-65 lbs, Purple for 35-85 lbs, Green for 50-125 lbs. Perfect for man and woman, beginners, fitness coaches or athletes. Fit For Any Occasion---Workout elastic bands can be used in home gym, office, hospital for rehabilitation,outdoor exercises, yoga or Pilates courses,etc. Easy to carry---Take up little space or weight in bags. 82.74*1.69*0.17inch Green 82.74*1.25*0.18inch Purple 82.74*0.79*0.17inch Black 82.74*0.48*0.17inch Red