Universal stopper for 1.1-2inchThis sink stopper is suitable for drain holes with a diameter inner 28mm-51mm(1.1-2in), which is suitable for most families. But please note that the sink with filter is not suitable for our sink stopper and I recommend you to check the size before purchasing. Reliable and firm in use Stainless steel and brass drain plug is equipped with a thick silicone seal. Thick and firm, bright color, reliable design and long service life. It is not easy to rust or break during use. Upgraded pop-up sink drain Bathroom pop-up sink drain can pass through freely from pop-up state to closed state with one press, which is more convenient and easier to use than traditional drain stoppers. You don't have to worry about sealing and draining. Effective anti-cloggingThe bathtub stopper is upgraded with an anti-clogging filter to prevent the drain from getting stuck with things like hair, rings and other objects. Easy to install and cleanNo tools are needed, Simply remove the old one and insert the rebound core to complete the installation. Suitable for washbasins, kitchen sinks, household sinks, bathtubs, etc. Applicable way< /b> 1. Remove the old pop-up flush cap 2. Insert a pop-up sink drain valve strainer 3. Pops up when pushed, acts as a bathtub/basin stopper 4. Collects hair, jewelry, dirt Scenes to use For holes with an inner diameter of 28-55mm Material: brass + stainless steel + rubber Package size: 6.5*6.2*6.0 cm (2.6*2.4*2.36 inches) Product weight: 105g (3.7oz) Applications: sink, bathtub, fringe sink, laundry sink, kitchen sink. Delivered quantity: 1 piece Good quality product