High-quality material: The floor drain insert is made of high-quality ABS material, which is durable, corrosion-resistant, and resistant to deformation and breakage. One-way water flow: The floor drain insert uses one-way water flow technology, which opens the water outlet when water flows through and closes the opening when there is no water flow. This sensitive and practical system prevents unpleasant water and odors from entering the house. Easy installation: The floor drain insert is easy to install, suitable for 41-50 mm drains, and is plug-and-play, convenient and fast. Multifunctional use: When the floor drain insert is installed, water can be drained, odors from the sewer pipe can be blocked, and pests can be prevented from entering the house. Areas of use: The floor drain insert can be used for 41-50 mm drains in bathrooms, balconies, kitchens and more. basements, laundry rooms, garages and other areas can be used.