Specifications:Material: PlasticFinish: ElectroplatingFit Overflow Hole: 23mm / 0.91"Inner Diameter: 19mm / 0.75"Total Size: 30 x 14mm / 1.18 x 0.55"(D*H) Package Contents:6pcs x Sink Overflow Cover Descriptions:1. Made from plastic, wear resistance, and corrosion resistance.2. Easy installation, Simply pushes in and clicks into place, no tools are required.3. Widely used in homes, shopping malls, hotels, factories, kitchen, etc.