-duty construction for dependable use in demanding environments. Stainless steel material resists corrosion and withstands outdoor conditions. -collision design s damage to walls, frames, and surrounding structures. Suitable for use on patios, covered porches, garages, and other semi-outdoor areas. build ensures function without frequent replacement. Broad utilization: ground door stopper can be applied on most smooth surfaces, suitable for any apartment, school or office, heavy door, glass door, balcony door or window sash and more., Manufacturer: KXCVBNKLJ