Ⅰ. Two-Pack Door Stopper Black, Stainless Steel Magnetic Door Stopper Strong Magnetic Door Stopper with 3M Adhesive and Screws KEEP DOORS OPEN: Magnetic door stopper is a useful door stopper with strong magnet effect, strong enough to keep ordinary interior/exterior doors open in strong winds, make your house spacious without strong wind, and prevent children/pets from getting hurt when the door hits the wall. Ⅱ. Magnetic door stopper is made of 304 stainless steel with glossy black finish, which can resist daily scratches and corrosion and grease for a longer service life. Strong rigidity combined with the extended base makes it more stable. Simple and effective, the magnetic door stopper is suitable for the bedroom, bathroom, terrace, baseboard, office, school or anywhere you want the door to be open. Ⅲ. The magnetic door stopper adopts soft-close door technology to prevent the door from slamming and to fix the door quietly and gently. The door latch has a spring buffer, which can effectively absorb the force of the door opening and prevent the door handle from scratching or hitting the wall. The soft door clips help reduce noise and startling reflexes without disturbing your rest and work. Ⅳ. The black magnetic door stopper can be installed using 3M adhesive tape, no drilling required, no damage to the wall, and can be easily completed without any tools. (Magnetic door stopper self-adhesive is suitable for smooth, even and dry surfaces, not recommended for drywall, uneven surfaces) In addition, it will be safer to install stationary with screws, and it is strong and durable even in damp/humid environments. Ⅴ. There are round magnets inside the magnetic door stopper. Strong magnetism can firmly fix the door in the 180 moving area. It can be installed vertically on the floor or horizontally on the wall.