Description Features: 1. Crafted from solid steel, this product is built to last, rust-resistant, and environmentally friendly. 2. The hinge surface features a multi-layer electroplating process, ensuring it is corrosion-resistant, wear-resistant, and durable. 3. This versatile product serves three functions: it acts as a hinge, a door stopper, and a door closer. 4. When the door is opened to 90 degrees, the positioning bead engages, allowing for precise orientation. 5. The invisible door hinge incorporates a 90-degree positioning design that automatically closes the door. Notice: Actual color may vary slightly from the image due to different monitor and lighting effects. Please allow 1-3mm deviation due to manual measurement. Includes: 1 x Spring Hinge