Global Pool Products GPP-RL-C49-3BNDSR4-SS 4' x 0.49" Classic 3-Bend Polished Stair Rail - The Classic 3-Bend Stair Rail has several options to help customize your stair rail to your liking. This stair rail is constructed of a 1.90" stainless steel tube with a wall thicknesses of .049". Stair rails with .049" wall thickness are ONLY offered in a polished finish. Anchors for stair rails are sold separately.