Size:21*6*3.2cm,upper aperture: 6cm, lower aperture: 3.2cm Filter can effectively prevent hair, garbage, etc. from clogging your sewers. Easy to operate and install, it is suitable for professional and personal use, practical and excellent. Features Material:Stainless steel, copper High-quality material and fine craftsmanshlp, durable and sturdy for a long time.-Standard size, suitable and perfect for most washbasins, which ensure its practicality and popularity.-It caneffectively prevent the residue, hair, etc. from blocking the sewer, useful and excellent Easy to install and remove, it will not hurt your hands, saving time and labor, convenient for you.-Suitable for kitchen, bathroom, shower room, toilet, wash basin, bring new look for your home.