The chest expander is made of premium material. It is perfect for muscle training indoors, exercise arms and maintain good health. In general, it can build the muscles of the chest, latissimus dorsi, shoulders, triceps. This chest expander is lightweight, easy to transport and store, you can exercise at home or in the office. Features - Color: Blue. - Material: Latex. - Size: About 55.00X12.00X6.00cm/21.61X4.72X2.36inch. - Ergonomic handles provide a comfortable grip, not easy to fall. - Can withstand a strong traction force and adapt to various strength training. - Removable chuck for force adjustment, easy find the proper strength you want. - This fitness tool is lightweight and easy to carry and store, you can exercise at home or in the office. - It is made of good quality materials and will not break easily.