Description Home Training---Spring Chest Expander is specially designed to strengthen your chest, arms and shoulders. Great Breast Expander for Home Training Ergonomic Non-Slip Handle --- The chest expander has an ergonomic non-slip handle that provides a comfortable grip. Durable, lightweight and easy to carry. Long-lasting elasticity---The fitness breast expander is made of high-quality materials and has long-lasting elasticity. These reinforced springs provide strength and long-lasting resistance, deeply stimulating your muscles as you compress them while using the device. QUIET FITNESS TOOL --- Spring tensioners for fitness provide maximum flex for chest, shoulders and arms. Quiet tool that allows you to exercise without disturbing others, good weight training fitness equipment