Steel Bathtub Bars: Durable enamel-coated steel bar attaches with a knob-style locking device to tub walls up to 7″ wide and is equipped with rubber pads to protect them as well. Unit is 6″ wide and extends 14″ above tub wall. White. Holds up to 250-lbs. Easy to install. Fits most standard bathtubs. Limited lifetime warranty on frame. Six month warranty on handles, “wearable” parts, grips, screws. Powder Coated Steel.