Perfect Compatibility: Fits 34-40mm inner diameter drain holes, suitable for most standard bathroom sinks, bathtubs and swimming pool drains. Please measure your drain hole before purchasing. High Quality Material: Made of brass with no gloss finish, offering strength and reliable use. Resistant to rust and can withstand water temperatures from -50 to 100 degrees after CNC machining and electroplating. Pop-up Design: Features a solid brass compression spring for quick closing and opening, preventing rings, jewelry and dirt from entering the sewer. Application: Replacement accessory for household bathroom drain pop-up plugs, fitting most pop-up tub wastes, bathtubs and sinks. Easy Installation & Cleaning: Tool-free installation, simply remove the old strainer and insert the new one. Easy to take apart for cleaning hair and debris. Color: As shown in the picture.