Good for rough : soft rubber door stop can be placed on the wood, cement, tiles and carpet; Relatively rough be better Suitable placement area: these door stopper fit the area under any of your doors putting anywhere 2.5 cm off the floor; When the distance is more than 2.5 cm, you can stack them up to apply Application: can as a helpful tool to prevent the door/ slamming, slipping or sliding; Fit for , metal door, glass door, wood door, self-closing door, household doors and so on Non-scratching and anti-slip: these door stoppers are made of flexible rubber, no more scratches on your floors; Sloped design and anti-slip striated base provide better frictional force and gripping power Applying them to open the window and door every day for efficient ventilation, and keeping health family or colleagues in the home and ., Manufacturer: Mcnhbdgg