Universal size. This sink plug has a filter ID of 33mm and fits drain holes from 34mm to 40mm ID, suitable for most homes. Built-in filter: Sink plugs with filters, basket filters and porous filters are designed to separate water from hair or small objects, which not only drains quickly and is easy to clean, but also effectively prevents water from clogging. Thickened copper core: The spring core is made of thickened brass, which is more durable. Build in spring lock, so that the strike is not stuck and the pressure is more sensitive. Easy to install. This sink plug is easy to install, just pull out the old sink plug and insert this sink plug into the drain. The whole process requires no tools, and the operation is very convenient and simple. Two modes: simple operation, pop-up drain plug, pressure switch mode, which can achieve the effect of water retention or drainage. Suitable for sinks and bathtubs, etc. ------------------------------------------------------------ Specifications: ABS + copper core Universal: 38G, the maximum width is 6.2cm, the maximum height is 4.2cm, the bottom width is 3.3cm, and the aperture is suitable for 34-40mm Cross All copper: width 6.2cm, height 4cm, bottom width 3.2cm, weight 92G, suitable for openings between 34-38mm Stainless steel: width 6.1cm, height 4cm, bottom width 3.2cm, weight 80G, suitable for openings between 34-38mm ------------------------------------------------------------ Package list: 2 Sink Plug