This is a hair catcher for the bathtub drain from SINKATEC. I purchased it from the Rakuten official website, but I am selling it because I bought the wrong size. I intended to use it, so I have removed the blue protective film shown in the 14th photo, but it is unused. Size: Standard, Diameter 140mm Product Name: 【HUBATH Bathtub Magnet Hair Catcher STD140】 This is a drain strainer for the bathtub. It's a great product that prevents overflowing even when a large amount of debris accumulates! It not only reduces the frequency of cleaning the bathtub drain but also allows you to simply throw away the accumulated debris with the net.