Effective Drain Pipe Sealing: Featured with their multi-layer thread and flexible design, they tightly integrate with the sewer, ensuring a reliable seal, and come with magnetic automatic valve prevents odor more accurately, opens during drainage and closes seamlessly without it. It can be installed with slight force. If the drainage hose is relatively large, the opening can be trimmed with scissors. Equipped with Plug: Supplied with a silicone sealing cap to seal it when no drainage is required, prevent water overflow and eliminate sewer gas smell with our drain pipe seal hose silicone plug, easy to install. The opening where the drainage hose is connected has elasticity, and the opening will be relatively small. Durable Material: Made of soft and non-compressible silicone material, this sealing ring is resistant to damage and offers long-lasting performance, this plug fills the gap between the drainpipe and the floor drain without affecting water drainage efficiency. Universal Fit: Suitable for a diameter range of 3.5 cm/1.37 inches to 4 cm/1.57 inches(35-40mm) pipes, these grey drain seal rings are perfect for various drain pipes, and they can be cut to desired size Wide Use Range: These washing machine hoses are perfect for use in kitchens, bathrooms, office, or any other space, suitable for various types of drainage pipes. It prevents water seepage, deodorizes, and is anti-fouling.