🤷‍♂️You just need to replace the door hinges with door closer hinges and adjust the closing speed, the work is simple. You don't need to understand complicated drawings, it will be a simple and smooth installation. 🤷‍♂️The door closer integrates door slam stopper, door closer and door hinges. The door spring closer with automatic door closing, soft closing, door hinge function. Durable stainless steel construction ensures long-lasting performance and resistance to wear and tear. 🤷‍♂️The door closer can reduce the noise interference generated when closing the door, close the door slowly to reduce the damage to the door caused by violent impact, and can prevent you from forgetting to close the door. Designed specifically for direct installation on door leaves and door frames, with no need for complex carpentry work., Manufacturer: YKMYXZ