Features: Our toilet flange Rings provide a reliable and waterproof seal for toilet installation and repair projects. Make of ABS and rubber materials to ensures long terms performances and durability. Ensures excellent adhesion and creates a tight seal to prevent water leakage and gas escaping. The integrated Backflow Prevention valves effectively prevents water from flowing back, eliminates the gas caused by backflow. The toilet flange Rings comes in a size that applicable to 100-110mm/3.94-4.33inch pipe inner diameter, making it easy to install. Specifications: Interfaces materials: ABS Sealing Materials: Rubber Style: Orange sealing Rings/Orange sealing Rings with seal strips/Blue sealing Rings/Blue sealing Rings with seal strips Size: about 125x125mm/4.92x4.92inch Applicable outlet diameter: 100-110mm/3.94-4.33inch Package Includes: 1pc Sealing Rings/1pc Sealing Rings With Seal Strips note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.