Material: The odorless silicone backflow preventer is made of thick PP material, silica gel and silicone, suitable for common floor drain gaugesFunction: Size: 6.5x5.5x3, 5cm / 2.56x2.17x1.38 inch. The toilet deodorant can effectively deodorize and prevent mosquitoes from climbingFast drainage: The large displacement of the bathroom drains quickly. Even when using the washing machine, the drainage can also be easily managed and is not easy to be blocked.Sealing the space: The deodorizing floor drain features a deodorization of the seal reducing ring, sealing the gap between the floor drains to make the bathroom pipe odorless odorlessConvenience: The floor drain core is a deeply deodorizing deodorant drain core waterproof, which prevents the smell of sewer channels, cockroaches from crawling, the backflow of sewer channels