Features: 1. Solid steel construction provides durability, rust resistance, and environmental friendliness. 2. Hinge surface features multi-layer electroplating for corrosion resistance, wear resistance, and long-lasting performance. 3. Multi-functional design serves as a hinge, door stopper, and door closer. 4. When the door opens to 90 degrees, the positioning ball engages to hold the door in place. 5. Concealed door hinge with 90-degree positioning that allows automatic door closure. Notice: Actual color may vary slightly from the image due to differences in monitor displays and lighting conditions. Please allow 1–3 mm variation due to manual measurement. Includes: 1 x Spring Hinge