Features: Secure your doors with our Automatic Door Spring. Crafted from durable aluminum alloy, it gently closes doors to reduce disruptions. Easily adjust the speed and tension of your doors with our versatile door spring. Enjoy a hassle frees installation process and customize the closing experience to your liking. Designed for a variety of doors weighing up to 30kg, our door spring is perfect for homeowners and renters seeking a convenient solution. Experience quiet and controlled door closing in any setting. From homes to offices and shops, our door spring seamlessly integrates into different environments. Create a peaceful atmosphere and improve safety with our reliable door accessory. Say goodbye to disruptive door slams and welcome a calm environment. Our door spring ensures a smooth and controlled closing motion, making it ideal for bedrooms, kitchens, and public spaces. Specifications: Material: aluminum allloy Package Includes: 1xDoor Closing System note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.