Premium Natural Door Stoppers: These security door stoppers are quality certified and ROHS compliant, the rubber door stop is strong and elastic, thick, durable and not easily deformed. Provides you with peace of mind without worrying about scratches and scuffs on the floor. | Large Door Stopper: Our set includes 4 door stops, each measuring 4.8"(L) X 2.2"(W) X 1.3"(H), whether it is an office, home or heavy industrial door, you can also double them back-to-back to install under most door seams, and the door stop fit almost all doors. | Special Design to Keep the Door Non-slip and Stable: The heavy duty rubber doorstop has a unique design that provides the best friction to keep the door stable security and not moving. No longer have to worry about the open door slamming shut to startle the sleeping baby, or disturbing you when you are working hard, let alone being overloaded against the wall under the brute force of the wind. | Fits Almost any Door and any Floor: Sturdy, non-slip rubber door stopper wedges are suitable for wooden doors, glass doors, heavy industrial doors, but also for floors of different materials such as wood, carpet, concrete, tile, linoleum, stone, asphalt and ceramics Waiting for the floor, the hollow design of the bottom provides excellent bite and grip even on rough or uneven surfaces. | Multi-occasion Use: The door is suitable for many places, such as hospitals, homes, offices, schools, etc. When you use the door stop wedge, you don't have to open and close the door every time, which brings you convenience. We provide a one-year free warranty and we are confident in the quality of the door stop. If you have any questions about the product, please feel free to contact us.