Rubber pad at the bottom can prevent the door from sliding when someone presses it. Remember to slide it tightly under the door when in use. Not recommended for use on very smooth floors (such as tiles/laminate/wooden floors) or set a high sensitivity level if necessary. It can be used as a regular door stopper when the switch is off, and keeps doors in the correct position. Thanks to the light weight (110g) and small size, it is easy to put in your handbag and carry.