Pull Up Assist Bands, JoyiQi Resistance Band / Mobility Band / Powerlifting Band / Jump Stretch Band / Exercise Band Add Resistance For Your Sports 3 pcs Per Pack Resistance Band #4, #3 and #2 Combo Pack -- Purple Band 3.2cm Wide -- Black Band 2.1cm Wide -- Red Band 1.3cm Wide; Great for Assisted Pull Ups, Weight Lifting, Pilates, Yoga, Stretching as well as any other body weight assisted exercises; Purple Band Provides 40 - 80lbs of resistance, Black Band Provides 30 - 50 lbs of resistance -- Red Band provides 10 - 35 lbs of resistance; Professional Quality 100% Natural Latex Material -- Length : 41" Loop -- Thickness 3/8" -- These bands are designed for everyday use and are favorites of Commercial Gyms and Personal Trainers; All JoyiQi Athletics Exercise Bands come with an Industry leading 2 year warranty - We Stand behind our products 100% -- If you aren't satisfied with the quality of our products we will fix it, GUARANTEED!!