Enhance your bathroom's functionality with the anti-backflow drain valve. This innovative device prevents wastewater from flowing back into your sink or tub, ensuring a clean sink. Easy to install, it fits seamlessly into your existing plumbing system. practical for use in bathrooms, kitchens, and laundry rooms, it offers peace of mind and reliable performance. Features -Color:Blue -Material:Silicone -Size:9.50X5.30X5.30cm/3.73X2.08X2.08in -Efficient backflow stopper: designed to prevent backflow in floor drains, protecting your home from potential water damage -Tidy: the silicone core effectively seals off sewer gases, maintaining a pleasant atmosphere in your home -Durable construction: crafted from sturdy silicone, this drain stopper is built to withstand daily use and resist wear and tear -Universal fit: compatible with a wide range of drain sizes, making it a versatile solution for different areas of your home -Quick installation: easy to install without the need for practical help Package list: 4pcs x drain backflow preventer