Kethy Mushroom Cabinet Knob Cabinet Knobs are used as a handling feature for opening and closing cabinet doors or drawers. (e.g. Usually used but not limited to kitchen cabinets and drawers, pantries, dressers, and many other small storage) Cabinet Knob Function - Facilitates the operation of cabinet doors and drawer by gripping the pull knob before pulling it to open or close the cabinet door or drawer. Specifications: Material: Solid Brass Diameter: 25mm 30mm 38mm Projection: 22mm 28mm 32mm Foot Width: 15mm 18mm 22mm Available Finish: Brushed Nickel Gunmetal Polished Brass Polished Chrome Satin Chrome Note: The screw depth on Kethy handles can vary depending on the design, Most knobs and handles have sufficient thread depth to allow a 22mm or 25mm screw to fix to either 16mm or 18mm doors or drawers. Knobs and handles are supplied with the correct screw for these thicknesses depending on the handle. Longer screws can be supplied upon request, up to 50mm long.