This Floor Drain Core is made of plastic and silicone, featuring anti-odor and insect prevention functions. It has a gravity-operated closure that automatically opens during water drainage and closes when not in use. The center outlet fits installations between 36-47mm. Designed for quick drainage and resistance to clogging, it is suitable for use in kitchen, balcony, or wash basin sink drains. Easy to install and weighs only 15g. Features 1. Anti-odor and insect prevention design, ideal for kitchen, balcony, and wash basin sink drains. 2. Gravity closure mechanism automatically opens when water flows and closes when idle. 3. Constructed from plastic and silicone materials. Simple installation, plug and play. 4. Inner diameter of the center outlet ranges from 36 to 47mm. 5. Efficient drainage with large flow capacity; water exits through dual side outlets for fast flow and reduced clogging risk. Specifications Material: PP Color: White Size: 5 x 4 cm Weight: 15 g Package Includes 1 x Water Pipe Plug