1.Firmly fix the door: Firmly fix your door with our mechanical door stopper, designed to withstand 10-standard strong wind. No need to fear wind weather, our stopper your safety and security with ease 2.Adjustable Height: Personalize the suction height of our mechanical door stopper to the height of your door crevice. Easily set the range from 10-20mm for a good fit every time 3.Child-proof Security: Equipped with a revolutionary tech-locking mechanism, our mechanical door stopper ensures an added layer of protection to your loved person from slamming doors and trapping tiny hands 4.Not easy to break: Our mechanical door stopper is built with a solid Zinc Alloy structure and wear- material, making it strong and outstanding 5.Easy Application: Enjoy secure and flexible use with this mechanical door stopper's two installation options. Choose between punching or no punching and install with strong double-sided tape or screws for an easy Comes with installation accessories Accessories: Random styles, don't accept the specified Colour:Black Material:Zinc Alloy Package Contents: 1 x Mechanical suction 4 x Screws 1 x Sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.