4 Tubes Elastic Sit-up Pull Rope Abdominal Exerciser Resistance Band. 4 tube pull ropes, high tensile strength and good elasticity.You can use these resistance tubes with handles sets in the privacy of your home, hotel room, office, etc.These resistance bands set with handles workouts your arms, tummy, shoulders, legs and butt.Made of environmentally friendly foam and high-elastic latex tube, it is full of elasticity, soft and comfortable.