: 5 tube chest expander. It is easy to take out any of the 5 soft belts, so you can easily add or delete a certain amount to adjust different strength boosts.High- Material: It is a resistance band tube made of latex, which will not hurt you during exercise. They have aging resistance, long life, good tensile strength, good elasticity and no irritating odor. and Convenient: easily add or remove rubber bands through quick actions. , suitable for travel and storage, office, gym, camping or traveling, exercise anytime, anywhere. Can help you get your ideal figure quickly.Slip- ant Handle: The ergonomic non-slip can provide comfortable grip.It is very suitable for adult men and women of various fitness levels, so that everyone can exercise their muscles. -Function: A upper body training device for training your , chest, shoulders, back and the entire upper body. It can also be used as a hand training device. force of the chest expander is 34kg.