High Quality: These odor stoppers are made of non-toxic, odorless, heat-resistant, cold-resistant and flexible silicone, easy to replace, odor-resistant, insect-proof and corrosion-resistant. Not Easy to Block: The silicone floor drain core solves the problem of low flow, easy to clog, easy to damage, easy to rust and corrosion. It can achieve the following five functions: anti-odor, anti-backflow, anti-insect, anti-rodent, anti-clogging. This is the best alternative to other floor drains. Good anti-odor effect: The inner core of these floor drains uses magnetic force to brake the opening and closing of the floor drain device up and down, allowing the sealing valve to open freely to ensure automatic sealing. Easy to use: These floor drains are very easy to clean, they are removable and very easy to remove and clean at any time. So don't worry when you find that the floor drains are not draining properly and other problems, all you need to do is remove them and clean them.