Material - Made of high quality ABS plastic, provides better grip than metal and won't scratch your basin; features good plating adhesion, uniform color, and corrosion resistance; durable design ensures long-lasting surface gloss and shine. Size - Overflow drain cover diameter: 1.29 inches. Fits holes sized between 0.87 inches to 0.94 inches (22mm to 24mm), compatible with most ceramic sinks available on the market. Easy Install, No Tools Required - Apply a small amount of soap when installing to help the cover slide in smoothly and securely. Simply push in until it clicks into place; firm pressure is required and safe to apply. Widely Used - Suitable for residential and commercial applications including homes, shopping malls, hotels, factories, schools, kitchens, and bathrooms. Package Includes: 4 overflow drain covers. Offers a decorative solution to cover the overflow opening, enhancing the overall appearance of the sink and complementing the fixture design.