Strong and Durable - The magnet is very strong at holding the door open and preventing it from swinging to prevent the door from hitting the wall or anything else behind the door. The magnet has a spring inside the receiver to cushion the shock. It's not terribly noisy or annoying, but it's something to keep in mind. The lower profile of the mini-sized door holder won't let the door protrude much, making it suitable for a more compact space. No more kicking the door stopper in the hallway. The system is compact and ideal for hallway, bedroom, kitchen, bathroom, office doors... Get rid of doors that won't stay open and high maintenance costs. Easy to Install - The package comes with screws and they are easy to install and hold doors open effortlessly. There are no instructions provided, so if you are wondering how to remove the base and screw in the screws, just insert two thin screwdrivers into each of the holes on the back of the base plate and turn. The set is compact and ideal for hallway, bedroom, kitchen, bathroom, office doors... Size: Total length: 5.3cm, Base diameter: 3cm, Please note that the round ball and screws are not stainless steel. They are shorter than a standard door stop, please check that the distance between the wall and the door handle is less than the total length of the door stop before purchasing.