A brass cabinet knob is a decorative and functional piece of hardware used to open and close cabinets, drawers, and other furniture. It is typically made of solid brass, a durable and corrosion-resistant metal alloy that has a warm, golden color. The knob may have a round, square, or other geometric shape, and may feature intricate detailing or a simple, streamlined design. The size of the knob can vary, with some being small and understated and others being larger and more prominent. Brass cabinet knobs can be installed using screws or other hardware and are a popular choice for adding a touch of elegance and sophistication to kitchen and bathroom cabinets, dressers, and other furniture pieces.