Door StopsRubber door stops provide just the right contact with residential floors to be securely wedged under interior and exterior doors for a secure grip. These heavy-duty rubber wedges with a unique design provide optimal friction to keep the door propped open. All our door stops rely on a sloped design to prevent doors from closing on their own. They fit under most door gaps if you double them back-to-back and can withstand daily use without cracking. FLEXIBLE These door stops allow you to move freely between rooms in your home, school, or office, without having to open and close your doors every time. WORKS WITH ANY DOOR, ANY FLOOR They work well on floors such as wood, carpet, concrete, tile, linoleum, stone, asphalt, and ceramic, providing superior grip. SLOPED DESIGN A clear reinforced edge around the door stops and the improved hollow design that allows for double stacking make it difficult for these wedges to tip over.