Material - Made of zinc alloy for durable use. Design - U-shaped design at the adsorption site, effectively avoids weakening of suction due to installation angle, can feel the super suction at any angle. Magnetic - Built-in neodymium iron boron magnetic steel, good magnetic, can long-lasting suction, wind and prevent falling off. Two Installation Methods - Can be mounted vertically to the floor or horizontally to the baseboard or wall. The bottom can be fixed with screws or adhesive sticker. The package does not contain sticker. Please purchase it if necessary. Widely Application - No matter where you want the door to keep open, use our door stoppers like home, office, hotel, etc., Manufacturer: MRKU