Premium Non-Marking Door Stopper - Bonus Organizing Your Space Tips - Keep Office and Room Doors Open (2) PREMIUM QUALITY: It's perfect for homes or offices. This Non-Marking Door Stopper is made from durable plastic and holds doors securely in place. The ridges on top gripped the base. USE ON ANY SURFACE: This classic yet modern black door stop is designed to work on carpet, wood, ceramic tile, linoleum and concrete! HOLDS DOORS OPEN - The door stop is ideal for keeping doors open for pets and family; to hold back a door when drafts invade the hallways; or, even just for holding the door while you're bringing in groceries or shopping bags from your trip to the mall. FITS STANDARD SIZED DOORS: Wedge shape and extra wide design help prevent slipping. Measures approximately 6 1/2" x 3 1/4" tapering down to 1" RECOMMENDED USES: Perfect for home, office or workshop. Excellent way to stay clear of the doorway when the UPS, FEDEX, USPS or DHL deliveries arrive. No need to stand there and hold the door. Also a great way to prevent door from slamming shut.