taekwondo leg tension stretch rope lower limb strength training elastic band rubber band explosive force 跆拳道腿部拉力拉伸绳下肢力量训练弹力带皮筋爆发力

yellow 15 pounds (single rope + a pair of foot buckle + cloth bag) red 20 (single rope + a pair of foot buckle + cloth bag) blue 25 pounds (single rope + a pair of foot buckle + cloth bag) green 30 lbs (single rope + a pair of foot buckle + cloth bag) black 35 (single rope + a pair of foot buckle + cloth bag) yellow 15 pounds (two ropes + a pair of foot buckle + cloth bags) red 20 (two ropes + a pair of foot buckle + cloth bags) blue 25 pounds (two ropes + a pair of foot buckle + cloth bags) green 30 pounds (two ropes + a pair of foot buckle + cloth bags) black 35 (two ropes + a pair of foot buckle + cloth bags) pulling rope sponge foot buckle pairs

leg chest expander