Easy installation Tool replacement by design. Simply remove the old drain core and insert this popup drain plug to complete the installation. Prevents clogging Removable anticlogging filter basket catches hair, jewelry and dirt before they enter the pipe. This provides a practical and effective solution that improves on traditional sink plugs. Dual function with easy mode switch Two modes in one stopper: sealing to retain water and filtering for drainage. Switch between modes by pressing the cover for convenient daily use. Rustproof and durable Rustproof design with double protection from nonslip rubber pads and sealing rings. This helps prevent leakage and supports longlasting, maintenance performance. Compatibility and performance Designed to the existing drain core for simple, tool installation and reliable operation. Provides effective drainage while preventing debris from entering the plumbing. Use scenarios Bathroom sink: use the filtering mode to catch hair and small debris while keeping water flowing smoothly. Kitchen or utility sink: retain water when needed and switch to drainage mode to allow debris to exit while the filter basket minimizes blockages. Everyday maintenance: the cover switch allows quick mode changes to fit daily tasks, helping maintain clear drains with minimal effort.