Baldwin's passage knobsets have no locking function and are free turning on both sides. These knobs are perfect for a hallway or closet where no locking is necessary. Sometimes passage knobs are used in conjunction with a deadbolt for an entrance or back door. Solid Brass Construction: Baldwin Reserve Series products are constructed from solid brass - providing a more luxurious, higher quality feel than door hardware made with lesser metals. When you hold a Baldwin product in your hand, you will immediately notice the difference that solid brass makes – it is heavier, stronger, and smoother than most of the door hardware on the market today.