Extended thick design: Extended silicone seal for 110 mm pipes provides a secure, leak resistant closure with enhanced coverage for long lasting performance and better odor control. Triple sealing system: Embedded sealing plates, nanomolecular putty, and silicone rings work together to improve closure reliability and deliver advanced protection against odors and pests. 90 autoclose mechanism: Gravityactivated flap seals automatically when dry and opens during drainage, effectively blocking sewer gases without any manual operation. Wide inner diameter and compatibility: Expanded and elongated structure accommodates higher water flow and improves drainage efficiency; compatible with general toilet types including split, singleunit, and smart models using 100110 mm PVC pipes. Key materials and durability: Built with silicone construction and integrated sealing elements designed for durability and reliable performance in toilet waste line applications. Use scenarios installations or renovations: Suitable for bathrooms with 110 mm waste pipes to ensure a secure seal, reduce leaks, and minimize sewer odors from the toilet connection. Odor and pestprone environments: The triple sealing system provides enhanced protection in homes or facilities where odor control and pest barriers are important. Versatile toilet configurations: Works with a range of toilet types (split, singleunit, and smart models) and can be used in projects involving 100110 mm PVC pipes to improve drainage efficiency and reliability.