The inner pipe of our toilet grab bar is constructed of corrosive resistant 304 stainless steel,which is anti-rust.1.3MM wall thickness and 5MM thick stainless steel solid base is sturdy enough to support up to 500lbs of pull force.The upper rod and the lower rod bear load evenly,maintains a stable and artistic appearance.Strong and handrails bar provide you a reliable handhold whether you're showering,bathing,or using the toilet