Features: Large discharge: the sewer is a closed environment, storing dirt and dirt, easy to form pipe odor, mosquitoes, etc., which is harmful to our health. We have upgraded the strong sealing and multi-layer locking switch, and the drainage is used in a clockwise direction. Large displacement, no water, no backflow. Magnetic adsorption rebound: straight line is swift, efficient drainage, and effectively solve the overflow and backwater during drainage. Anti-odor: Anti-reflux device can release odor, standard 50 general calibers, Large 75 international calibers. Easy to use: The sewer drain-core is suitable for all pipes, plug and play, easy to install. High quality: The floor drain-core is made of ABS, which can be used in the kitchen and bathroom to meet different needs. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material:ABS, Silicone Size:51x96mm Applicable Pipe Diameter: 50 Tubes 75 Tubes Package List: 1*Drain Deodorizer Rings