[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]: This is a band tube of latex resistance, which will not hurt you during exercise. They have aging resistance, long service life, good tensile strength, good elasticity and no irritating smell. [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. [Anti-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 workout device 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.