Forget Weights - Workout With These Resistance Tubes! Use Multiple Tubes At Once For Varying Levels Of Difficulty. Attach Your Handles & You'll Be All Set For Tons Of Exercises! helps Tone & Strengthen Major Muscle Groupshelps Increase Range Of Motion & Staminaprovides 7 Different ...Forget Weights - Workout With These Resistance Tubes! Use Multiple Tubes At Once For Varying Levels Of Difficulty. Attach Your Handles & You'll Be All Set For Tons Of Exercises! helps Tone & Strengthen Major Muscle Groupshelps Increase Range Of Motion & Staminaprovides 7 Different Resistance Levelsincludes 2 Handles & 3 Resistance Tubesmaterial: 80% Tpr, 15% Eva Foam, 5% Abs Plastic