Features: 1. The door stops for bottom of door are made of quality stainless steel and rubber, built in the Adjustable Spring Loaded, not easy to break and slip, which are suitable for wooden doors, heavy duty doors, glass doors, and metal doors and so on. 2. Due to the quality material and practical functions, you can share the hotel door stopper with your family and friends, which can be applied in the classroom, office and other places, giving you a convenient using experience. Specifications: Material: rubber+stainless steel Color: Silver Size: Before bounce: 12.8 x 4.7 x 4.54cm/5 x 1.85 x 1.79 inch After bouncing up: 12.8 x 7.5 x 4.54cm/5 x 3 x 1.79 inch Package includes: 1 X Door stopper Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.