FAREWELL TO ACCIDENTALLY DOOR CLOSURE: Both sides of the door stoppers are made of thick and textured rubber strips to help increase friction, allowing the door stopper to effectively block the door and prevent accidental closure. High quality rubber strips are sturdy and durable, continuously providing you reassurance. WEIGHT BRINGS STABILITY: Compared to others, this doorstopper has upgraded its metal structure and increased its weight to 12 ounces. Sufficient weight makes this bottom door stopper more stable and suitable for larger and heavier doors, meeting the needs of home, office, or public places. WIDELY APPLICABLE TO TO DIFFERENT DOOR HEIGHTS: The bottom door stopper adopts a diagonal cut design, providing the height of 0.2" to 1.18", which meets the different door seam sizes of your home. Please measure your door bottom seam height before purchasing. TIPS: to get a ideal use experience, please ensure that the stopper are tightly inserted into the door seam. 2 ANTI-COLLISION STICKERS AS GIFT: You may have experienced the trouble that the door handle slam into the wall and leave a crack when you push open the door. To avoid such situations the door stoppers come with 2 pcs silicone anti-collision stickers. (Stickers are not recommended to be used directly on latex paint walls)