Powerful Magnetic Force: Have you met this trouble? The door is slammed shut by sudden winds or naughty children causing damage to doors and walls.magnetic door stopper, the magnet is strong enough to hold door open firmly and prevent your doors from banging into the wall. Magnetic door holder is powerful and effective even on windy days. Premium Material: Magnetic door stop catch is made of durable 304 stainless steel, built to resist daily scuffing, rust and corrosion for long-term durability and reliability. Invisible magnetic door stoppers design, kick-proof, collision-proof, the door close to the blocking piece will only pop up. Easy to clean - Does not affect the cleanliness of the room, mopping with a wet mop won't rust and tarnish. Kindly Note & Wide Application: When you install magnet door stop, the magnet part installation distance from the ground should be 5MM and 12MM, the smaller gap between door and floor, the stronger magnet will be. Not recommended for heavy doors. (Please check the distance of door gap before order) Doorstop adopts hidden screw holes design, simple and generous, perfect for bedroom, bathroom, office, etc. 2 Ways to Install: Magnetic door stoppers for floor comes with 3M double-sided adhesive tape and hardware screws, you can use powerful 3M self-adhesive with ease, no drilling. Also, you can use screws to permanently install, which will be more durable and stable. (Tips:3M adhesive suitable for smooth, flat and dry surfaces, not recommend for drywall, uneven surfaces) Material:Stainless Steel Color:Silver Size: Thickness: 4mm