Specification: Item: Resistance Bands. Material: TPE. Yellow: (Inner Diameter)*(Outer Diameter)*(Length) 5*8*1200mm / 10LBS. Green: (Inner Diameter)*(Outer Diameter)*(Length) 6*9*1200mm / 15LBS. Red: (Inner Diameter)*(Outer Diameter)*(Length) 5*9*1200mm / 20LBS. Blue: (Inner Diameter)*(Outer Diameter)*(Length) 5*10*1200mm / 25LBS. Black: (Inner Diameter)*(Outer Diameter)*(Length) 5*11*1200mm / 30LBS. Features: - Fully suited to hand design, it helps catching, flexible foam to protect against damage. - Made of TPE material which is extremely durable, and bands will maintain their resistance for a long time. - Stored in the pouch and easily fit into your backpack, so you can do workout at home, gym, office or traveling. - Increase the range of motion stretching.Reduces the risk of pre-exercise injuries and reduces post-exercise pain and suffering.   It also helps reduce stress and improve joint flexibility and mobility. Package included: 5 X Resistance Bands. 1 X Door Buckle. 2 X Ankle Straps. 2 X Foam Handle. 1 X Storage Bag. Notice: - Please allow slight dimension difference due to manual measurement. - Please consider the actual sizes in the listing as the pictures are generally enlarged to show detail. - Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. - Due to the light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding