Black brass washbasin/sink overflow cover. The front of the insert is made of high-quality brass with a wear-resistant copper bronze finish. The clamps are made of plastic for easy installation. Made to fit standard 19-23mm (7/8 inch) overflow holes and designed to be gently pushed into the hole and latched into place. No tools required, simply clamp. Specifications: - Finish: Black rubbed brass; - Made of high quality brass; - Fits overflow holes with a diameter of 19 to 23 mm - Very easy to install;