UPGRADE RUBBER DOOR STOPPERS, LONGER SERVICE LIFE: After research and comparison, HELEMAN uses a heavy-duty non-slip base, and the door stopper is not easy to move with your door, which is different from the doorstop on the market. A unique wedge door stop design is an ideal combination of a hollow and structured interior that provides durability and ultimate stopping power. The upgraded wedge rubber doorstop is made of high-quality durable rubber, which is safe for your family, pets & kids ONE FITS MOST, FOR ALL FLOORS: HELEMAN door stoppers suitable for door gaps of various heights. Door stoppers measure L 5.00" x W 1.50" x H 1.20". ONE door stop is suitable for 0.1-1.3'' door gap. You can stack the 2 wedges together apply to door gaps of different heights, the door gap between 0.1'' to 2.6'' are allowed. Upgraded HELEMAN door stop fits carpet, concrete, cement, vinyl, tile, linoleum, wood floors with a strong grip. Note: for most doors, but not for super heavy-duty doors. HOLD YOUR DOOR OPEN: Do you have such troubles? You want to open the door for ventilation, but a slight breeze would slam the doors closed. Naughty kids/ pets dog cat will inadvertently slam the door roughly. What follows is a loud bang that can cause damage to door and wall, and ruin the good mood of all day. Don't worry, HELEMAN door stop will solve your trouble, use wedge to keep home/ office doors open, great for keeping the air circulating in the house without the door being closed heavily. EASY TO USE & EASY TO STORE: The HELEMAN door stop only needs to be placed on the bottom, no drilling and screwing are required. Put the wedge under the door -- push the doorstop with your feet & pull the door out with your hand -- let the wedge get stuck -- complete the installation. HELEMAN doorstop has adhesive holders, you can easily store the door stops behind the door when not in use, not easy to lose. The wedges allow you to move freely without having to open & close the door every time.