1. Ideal for beginners and effective upper body training The easy adjustable chest expander with 5 latex tubes resistance system targets and develops the inner chest and upper body muscles, including the biceps, lacteal and pectoralis muscles. It offers notable training benefits without a cost. 2. Flexible resistance to match your level The chest expander uses 5 latex tubes. You can add or subtract tubes to obtain the desired resistance. This setup provides a challenging workout for the chest muscles in a way that traditional gear may not. 3. Lightweight and sturdy for everyday use Weighing 500 g, made from natural latex, and designed for compact storage. Its portable size makes it easy to use for chest workouts at home, in school settings, during parties, in the gym, outdoors, or while traveling. 4. Easy to grip with secure handling The resistance exerciser features nonslip handles with a side design that includes 5 grooves to fit your hand for a comfortable stretch. This design helps you quickly adapt to varying tension levels. Use scenarios At home or in a classroom: perform targeted chest and upper body work with adjustable resistance to suit your strength level. On the go or outdoors: the compact 500 g design and 5tube system fit easily in a bag for travel, outdoor workouts, or hotel room sessions. In gym or during travel: use as a portable warmup or strength training accessory to complement existing equipment and routines.