Select the material.Towel rack materials are generally stainless steel, aluminum alloy, zinc alloy and copper and other 4 kinds.Stainless steel is cheap, corrosion resistance is good, but the structure is not tight, stability is not good enough;Aluminum alloy and zinc alloy cost is higher, stability is better than stainless steel;Copper is the best choice for stability, hardness and gloss, but it can be more expensive than it is.So shower hinges for glass doors