REALLY EASY TO USE: Position the Door Blocker with the bottom flange under the door, straight listed below the door deal with. Evaluate the door, to make sure the Door Stopper is securely placed. Simple and reliable means to provide privacy and also safety by stopping unwanted intrusions.WIDELY USED: The door barrier is perfect for anybody that needs privacy or safety and security in any type of room their staying in (assuming the door opens up in the direction of the space ).