1. [SOLID QUALITY] - Magnetic door stops is made of Stainless Steel, passing 10,000 tests to ensure durability and resistance, rustproof for indoors/outdoors. Door stop with matte black surface, designs with detachable cover to concealed mounting screws. Elegant modern look, blend with any home decor well. 2. [STRONG MAGNET] - Magnetic door stop has strong magnetism and last for long time, withstand door opening/closing repeatedly. For heavy doors, strong magnetic door stopper still can keep door open in wind. ----WARM TIPS: black door stop's magnetism can be adjusted by the tip shared in attached guide. 3. [SOFT CATCH DESIGN] - Magnetic door catch features in integrated soft-catch technology, stopping and holding doors softly and silently. The spring buffer loaded in the catch helps door stopper reduce the force of slamming too hard, shock absorb to provide better wall protection. 4. [DOOR & WALL PROTECTOR] - Door stopper magentic prevents wall from damage by doorknob, hold and keep door open securely, which is a wonderful solution to solve annoying doors from slamming shut, keep interior and exterior air flow, your hands when carrying things. 5. [EASY TO INSTALL] - Screw hardwares and instruction are included. The base of magnet door stopper has 3 fixed holes in the shape of a triangle, stable when mounting to the floor or wall. Than adhesive magentic doorstops, floor door stopper with screws work more stably if in outdoors or on heavy doors.