This door stop is silicone material, 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. If the silicone door stop is dirty, it is easy to rinse clean with water and dry before using, the effect will be better. Whether it is an office, home heavy industrial door, you can also double them to fit under most door stops fit for all doors. 3Pack heavy duty silicone door stoppers has a unique cheese 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 use tape. These silicone door wedges allow you to move freely between rooms in your home, school office without having to open and close the door every time., Manufacturer: TERNCOEW