1.Grade of Stainless Steel: Stainless steel comes in different grades such as 201,304, 316, etc. The grade affects the rack's resistance to corrosion and durability. 2.Finish: stainless steel bathroom accessories can have different finishes such as brushed stainless steel, polished stainless steel, or matte finishes, which affect their appearance and resistance to fingerprints and scratches.