L NOW Light Figure 8 Ultra Toner Resistance Band Exercise Cords for Yoga Workout,Body Building,Home Gym with Heavy Duty Muscle carving,home fitness tool,natural latex elastic,antiskid foam. Can train the deltoid,biceps,back muscles,the pectoralis major abdominal oblique muscle.Body building,is a kind of emphasis on muscle and other movement. Figure 8 exercise bands is suitable for most parts of your body exercise,including the outside of the inner arm muscles,the muscles inside the outer leg,wrist,abdominal,deltoid and so on. Through different exercise positions to accelerate blood circulation and metabolism,improve muscle relaxation state.Very light and convenient to carry,suitable for home or outside gym. With good flexibility and please feel free to contact us if you have any problem