Polyester Blend Made in the USA or Imported Bands Included: Yellow (2-4lbs) Blue (4-6lbs) Green (10-12lbs) Black (15-20lbs) Red (25-30lbs) Orange (35-40lbs) Resistance bands are made with the highest quality rubber. Pre-attached handles allow for maximum mobility and ease of use. Kit includes 6 resistance bands, a door anchor, a carrying case and workout guide. Ships in certified frustration-free packaging.