Made of plastic and copper for durable, practical use. Suitable for most basins. Easy to install: just remove the old filter and insert this to complete the installation; manual installation with no tools required. Adjustable height: can be set from 6.8 to 10.1 cm (2.68 to 3.98 in) to fit different sink depths. Leak resistant seal: designed with O rings gaskets to plug the sink, provide a good sealing effect, and prevent water leakage. Versatile performance: enables reliable sealing for filling and soaking tasks without water draining away. Use scenarios: Kitchen sink: fill for soaking dishes or prepping produce without draining. Bathroom or utility sink: temporary stopper for cleaning, shaving, or hand washing. Laundry/utility tub: hold water for presoak or convenient cleaning tasks.