The pull-up bar is made of 1.5mm durable and high-grade steel built to last and can hold up to 350LBS. It is equipped with thick and high quality foam to avoid hand blisters, to ensure a strong grip on the bar and to prevent any marks or damage to your doorway once the bar is attached. This product also features two high-quality steel pole that keep the bar from loosening and spinning while you are exercising.