Stylish useful New Stainless Steel Magnetic Door Stopper Holder Catch This is a all stainless steel design Magnetic Door Stop. It stops the door from slamming from the wind. And of course the kids from slamming the door into the wall. The Magnetic Door Holder consists of two parts: the floor fitting and the door fitting. The Magnetic Door Catch has a magnet that keeps the door open when you want it. Material: Stainless Steel. size9cm x 4.4cm x 3.1cm.