Durable and Stable: The magnetic door stop is made of high quality zinc alloy, which makes the magnetic door holder strong, rust-proof and waterproof. The brushed satin nickel surface of the floor mount door stop resists daily wear and corrosion, durable and reliable, offering you a longer service life than other door stops. Strong Magnet: The invisible door stop is equipped with high quality strong magnet, can be used as a magnetic door stop and door holder to keep the door firmly and quietly. The sturdy magnetic door stop prevents your door from slamming by wind or closing suddenly. The magnetic door stop works smoothly and is easy and quiet to use. Two installation methods: magnetic door stop without drilling or perforation. Self-adhesive door stops can be firmly attached with 3M stickers without damaging the floor or door. We recommend using screws to permanently and securely attach door stoppers to the bottom of the door, ideal for wet surfaces or outdoor use. All necessary