[5 Color Adjustable Resistance Bands]-- Yellow (10 lbs), Green (15 lbs), Red (20 lbs), Blue (25 lbs), Black (30 lbs). All resistance bands are 48" in length, and they can be used alone stacked or in any combination to a maximum equivalent of 100 lbs. With attachable 2 soft handles, 2 ankle straps, and 1 door anchor, you can choose different training method for building strength.