1. Extended Thick Silicone Toilet Extension The lengthened and reinforced silicone construction provides a snug fit for 110mm pipes, effectively helping to prevent leaks and block unwanted odors in busy household bathrooms. Compatible with common toilet models. 2. Triple Sealing System Integrated sealing plates, molecular putty, and silicone rings work together to prevent leakage and ensure a secure closure, contributing to a fresher and cleaner bathroom environment. 3. GravityActivated Flap A 90degree autoclose mechanism uses gravity to seal when not in use and to open smoothly during drainage, helping to prevent sewer gas from escaping without manual adjustment. 4. Wide Inner Diameter Design The expanded and elongated structure increases water flow capacity and drainage performance, suitable for usage settings and compatible with 100110mm PVC piping. Practical use scenarios In a busy family bathroom with multiple users, this device helps prevent odors and leaks by providing a reliable seal for 110mm plumbing. In commercial or shared restrooms with traffic, the gravityactivated flap and triple sealing system support quick drainage and odor control. During renovations or installs using 100110mm PVC piping, the wide inner diameter design ensures compatibility and improved drainage performance.