Description: Upgraded Drainage Joint: Floor drain made of high quality rustproof ABS material, it is not easy to rust and is very durable. Automatic Opening and Closing Design: Automatically opens during drainage to ensure smooth drainage, automatically closes after drainage, and seals to prevent odor and drainage backflow. Wide Applications: Our drain filters are suitable for most standard sinks. Make sure the sink drain collector fits your sink plug hole before purchasing. (Suitable for 1.42 to 1.65inch diameter, 36mm to 42mm.) Easy to Stay in Place: The drain cover is easy to clean, a tissue and wipe the hair on the catcher. The drainage collector is weighted for stability, and the silicone rings also holds the in place. Prevent Hair from Blocking Drainage: Drainage collector is easy to install without tools. Say goodbye to clogged drains and expensive hydraulics forever. Extended service life! Size Chart: 7.2cmx4.8cm/2.83inchx1.89inch Package Includes: 1bathroom floor drain inner core(5 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.