[Odor-Resistant Design] - The sink drain kit has a built-in anti-odor device. When no water is draining, the anti-odor core cools to prevent odors from rising. [Anti-Clogging] - The sink drain includes a filterable sink stopper. It effectively prevents hair and debris from entering the drain and causing blockages. [Double Drain Connection] - With a double connection design, suitable for vertical drainage or wall drainage. The retractable drains are freely adjustable and the length varies from 17 to 94 cm. Suitable for a drain opening of 3.8 to 5 cm. [Easy to Install] - Both bathroom sinks without overflow and bathroom sinks with overflow can be adapted. No tools are required to install this bathroom sink drain kit, and there is no need to call a professional plumber, you can install it yourself! [Easy to Clean] - The removable design of the pop-up sink plug can easily clean the debris in the drain without overall disassembly, making regular cleaning easy.