★ Purchased in 2022. This item was brought back by my child during a visit, and as it doesn't suit our household, I am offering it for sale. ◆ Prevents the outflow of garbage and hair! Easy installation, just place it in the drain of your washbasin. It prevents the drain from clogging, allowing you to wash your hair in the washbasin with peace of mind. ◆ Compatible size: Suitable for drains with a diameter of 3.5 to 4.5 cm. ※ Cannot be used with pop-up type washbasins.