the silicone door stop is dirty, it is easy to rinse clean with water and dry before using, the effect will be better 3Pack heavy duty silicone door stoppers has a unique cheese shape that provides friction to keep the door stable and secure and from moving No worries about the opening door slamming shut to scare the baby Our cute door just needs to be placed on the bottom of the door No need to drill holes or use tape These silicone door wedges allow you to freely between rooms in your home, school or without having to open and close the door every time This door stop is silicone, strong and flexible, thick and, not easy to deformed No damage to the ground, Strong grip, no damage to the door Safe and to use Whether it is an, home or heavy industrial door, you can also double to fit under most door stops fit for all doors, Manufacturer: Oxxggkao