This floor drain core is crafted from durable ABS plastic with a smooth finish that withstands daily use. It incorporates a built-in reverse valve mechanism to block backflow of water and trap odors, making it ideal for bathrooms and kitchens. Easy to install, it fits securely into most standard drains to protect your home from unpleasant smells and plumbing issues. Features -Color:Black -Material:ABS -Size:5.00X5.00X3.50cm/1.97X1.97X1.38in -Seamless Drainage Operation: Designed to allow water to flow effortlessly through the drain, this core ensures your drainage system remains efficient and with long-term, reliable performance -Wide Application Compatibility: ideal for use in various indoor environments including bathrooms, kitchens, and laundry areas, ensuring versatile usage for different drainage needs -strong Material Construction: Crafted from robust ABS material, the drain core offers excellent texture and durability, maintaining high efficiency while resisting wear over time -Odor and Backflow Protection: Features an effective seal that blocks unpleasant sewer gases and prevents wastewater from reversing into living spaces, maintaining a hygienic atmosphere -Simple Installation and Longevity: Easily inserted into existing floor drains, the component stays stable and secure, providing extended service life without frequent maintenance Package list: 40 x backflow preventer strainers