Improved Long Strike Plate: No more worrying about the gap between the door stopper and the door. Even though the doors are taller than this door retaining stopper, they can also be close to operating due to the long strike. This magnetic dome style door stops suitable for the door whose gap between 3mm and 30mm.Stainless and Durable: The magnetic door stopper is constructed of high quality brushed stainless steel, which is strong and rustproof, ensuring even work in humid environments. The thickened base can greatly extend the life of the door suction.Easy to Install: Two ways to install the door stopper on the floor. 1.You won't need any drilling. 3M VHB Double Sided Tape Glue will make sure your door stopper is secured to the floor. 2.You can choose the installation of the punch, the stronger perforated design the mounting on the ground permanently with screws will be more durable and stable recommend this installation method.Magnetic Force and Bumper: The magnetic door latch is strong enough to hold and catch the door in the wind to prevent the door from slamming due to the wind. The semi-circle rubber bumper design can reduce collision and better protect the door and wall.What You Get: 4 x magnetic door stopper, 4 x adhesive tapes, 8 x mounting anchors, 16 x screws.