EXERCISE - The breast expander can help us build muscle strength and shape a good figure. If we keep using it everyday, it will help you to improve breast, muscle growth and butt lift. Let you have a healthier body and a more attractive body curve. Versatile Resistance Bands - Resistance bands feature high resilience and tensile strength for a complete and powerful workout. Not only does it work your chest, but it also works your arms, back, shoulders, legs, and buttocks with different exercises. But be careful to exercise using the posture and the scientific method. COMFORTABLE TO USE - This chest expander is made of high quality TPE material, which is safe and environmentally friendly, strong and reliable. The ergonomic handle provides a comfortable grip. The resistance rope has strong elasticity and is not easy to break after long-term use, so you can use it with confidence. ADJUSTABLE RESISTANCE - The sports chest expander features five detachable rubber cords that allow you to adjust the strength of the resistance band to your liking. They allow you to gradually increase your strength until you can perform the entire movement on your own. Allows you to protect your body during exercise. PORTABLE - As a home gym equipment, this chest trainer machine can be used at home, in the bedroom, in the the garage, in the gym and in the gym. Small in size and lightweight, it is more convenient to carry, allowing you to exercise anytime and anywhere during travel and camping.