The "black technology of drainage" in Brazil's sanitary ware? Why is this small accessory popular in South American families?

Q: South American bathrooms are damp and leaky, ordinary drain plugs can't bear it?

A: The sewer plug originating in Brazil directly "grasps" the high-humidity environment - the thickened brass base is anti-corrosion, the customized silicone ring is suitable for the mainstream basin caliber in South America, and the press and bounce design is suitable for the local fast-paced life.