Made of high-grade steel wire and springs Non-slip plastic handle for durability Great for building upper body strength Great for working on wrists, forearms, chest, arms and shoulders. Great for home, office or travel Heavy 20kg 30kg 40KG 50KG 60kg sports fitness spring bar arm chest training bar feature: Exercise your shoulders, arms and back muscles for a healthier and stronger body feature: * Brand new and high quality * Made of high quality steel wire and spring * Can be used anytime, anywhere, very convenient * A great gift for your partner or friend * Rubber handle for excellent grip * Ideal size for anytime, anywhere *Perfect for work on wrist, forearm, chest, arm and shoulder. Specification: * Colour: Black * Material: spring steel+ABS+rubber *force strength/*spring length/*item weight 20kg-54cm-0.65kg 30kg-58cm-1.05kg 40kg-60cm-1.15kg 50kg-60cm-1.5kg 60kg-61cm-1.55kg