LARGE DOOR STOPPERS: Each wedge door stoppers measures 4.8" (L) X 2.2" (W) X 1.2" (H) and best for door clearances between 0.4" to 1.1". These rubber door stopper wedge are perfect for indoor and outdoor use at home/office/cottage/garage/ school and hospital. | WIDE APPLICATIONS: These sturdy non-slip door jam are suitable for wood, glass, and steel doors and they work well on floors like hardwood, carpet, concrete, tile, linoleum, stone, asphalt, and ceramic providing superior clench. | STRONG: These rubber door stops rely on a sloped design to keep doors from closing on their own. They fit under most door gaps if you double them back to back, and will withstand daily use without cracking apart. Reinforced skirting around security door stoppers and the enhanced hollow design which enables double stacking makes it hard for these door wedge to topple. | ANTI-SLIP: Protect your home or office wall with these abrasion-resistant heavy duty door stoppers which won't slip or damage even on those Industrial doors. Keeping your kids, and babies safe from slamming doors. Pets will not be unable to return home because the door is closed by the wind. | NATURAL RUBBER: These rubber door wedge are made of strong flexible rubber and are conducive to environmental protection, and comply with American ROHS standards. These are not easy to deform and have no irritating odor. We offer a ONE-YEAR FREE WARRANTY. If you have any problems with the product, please contact us.