Latex Made in the USA or Imported Solid and Hard-wearing: Our heavy resistance bands are made of natural latex material, Non-toxic, no odor, anti-slip and curled, our pull up bands will not break, safe and multifunctional, please rest assured to use. Our new door anchor is equipped with a carabiner to make the door anchor stronger and easier to use Wide Applications: This professional exercise bands comes with 5 different levels of resistance with a new door anchor. #1Gray(15-35 lbs), #2Gray(20-55 lbs), #3Gray(25-75 lbs), #4Gray(35-90 lbs), Black(60-170 lbs). They are very suitable for beginners, fitness enthusiasts, athletes and other people Multifunctional Workout Bands: They are perfect for you to learn pull-ups, ring droops and muscle ups. They are ideal for body resistance training and physical therapy to help strengthen ligaments or muscle tears, and are ideal for exercising arms, back, legs and buttocks Anywhere to Use: This long resistance bands are light we