Black Mountain Products New Set of 4 Resistance Bands B.M.P. resistance bands are made from the highest quality rubber Each Resistance band is 48 inches in length B.M.P. Resistance Level: Yellow 2-4 lbs., Blue 4-6 lbs., Black 15-20 lbs., Red 25-30 lbs All Black Mountain Products resistance bands come with a manufacturers warranty Accessories Included: Door anchor, workout guide, and resistance band carrying bag