[Unique Design]: 5 tube chest expander. It is easy to remove any of the 5 soft belts, so you can easily add or remove a certain amount to adjust for different strength increases. [High Quality Material]: It is a latex resistance band tube, which will not hurt you during exercise. They have aging resistance, long service life, good tensile strength, good elasticity and no irritating odor. [Lightweight and Convenient]: You can easily add or remove rubber bands with quick actions. Lightweight, suitable for travel and storage, office, gym, camping or travel, exercise anytime, anywhere. Can help you quickly achieve your ideal figure. [Non-slip handle]: The non-slip ergonomic handle can provide a comfortable grip. It is ideal for adult men and women of different fitness levels, so that everyone can exercise their muscles. [Multi Function]: A perfect upper body trainer to train your arms, chest, shoulders, back and entire upper body. It can also be used as a hand trainer. The maximum spring force of the chest expander is 34 kg.