1. Material: Our vessel sink drain is constructed from durable solid brass and the tailpiece is stainless steel. It ensures long-lasting performance and reliability for your bathroom sink drain needs. 2. Rust-Proof Chrome Plating: Superior chrome finish is corrosion and rust-resistant. And polished chrome coating provides long-lasting brilliance that perfectly complements faucet hardware. Choose the chrome bathroom sink drain to match your bathroom faucet and create a beautifully coordinated look! 3. Fits Standard Drain Hole from 1 5/8" To 1 29/32": The pop up sink drain fits for the drain hole with a diameter of 1 5/8" to 1 29/32" (1.62 to 1.9 inches). WITHOUT overflow design, the drain is suitable for basins WITHOUT overflow hole. CAUTION! To avoid costly installation issues due to inadequate sizing, measure existing drain opening or consult sink manufacturer instructions first before placing an order. 4. Engineered for Effortless Drainage: The push-down drain function guarantees complete water removal while providing a secure seal. The spring-activated push button eliminates the need for a lift rod, allowing you to effortlessly press down to close and seal, and press again to open and drain the water. For maintenance or cleaning, simply twist the upper cap counterclockwise to unscrew and remove it. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.