1. [Strong and ] Made of high quality stainless steel and rubber. Non-hollow inside, the door stopper will not fold when you apply very strong force to the door. These hard metal door stoppers will not rust or deform over time. 2. [Ideal Size]Your door stop will measure 3.9" x 2.0" x 1.2" with a height of 0.05" at the shorter end. A door stop will fit under any door from 0.1 to 1.2 inches above the floor. If it is higher than 1.2 inches, please use two stoppers, they are stackable. 3. [Easy Storage]With the stainless steel handle, you can hang the door stopper on the door, refrigerator, wall or anywhere you want. It won't take up too much space or get lost, and you'll easily find it the next time you need it. With its stunning silver and black design, this decorative door stopper doesn't look bulky or out of place! 4. [Design]The door stoppers for bottom of door is rubber and grip the ground well, providing the friction. The door stoppers do not move and keep the door stable. It's also very secure. The surface is angled to prevent the door from closing on its own, so you don't have to worry about the door slamming shut in a strong wind. So as not to disturb the hard-working you, sleeping babies and running children.