Features: Made of highqualitys materials, good quality and long use-time. Suitable for aperturesof3.2-3.4,3.8-4.4cm, widely used in hoses in toilets, bathrooms, kitchens, floor, etc, with a wide range of uses. You can place it directly on the drain port, which is simple and convenient to install, can effectively deodorize, clean andhygienic. Durable and corrosion-resistant, can effectively preventdeformation. Large displacement design, flushingmore quickly. Easy to install, plug andplays. Specifications: Material:Plastic+Stainless Steel Size:Approx.4.4 x 4.6cm/1.73x1.81inch Color:Red/Blue Magnetic self-closing type Features:Anti-odor/ Anti-defection/ Fast drainage/InsectPrevention Package Includes: 1x Floor Drain Device note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.