Improved ball bearing design ensures smooth operation with no squeaking or stiffness when opening or closing the door. Eight mounting holes on each hinge provide added stability and secure installation. Made from premium stainless steel for excellent corrosion resistance and long-lasting durability. Universal size fits most standard doors and is easy to install. Package includes 2 hinges and 16 screws. Resistant to rust and corrosion, enhanced through protective processes including coating, spraying, grinding, and electroplating. Provides quiet, smooth rolling action for reliable and flexible door movement, ensuring long-term performance with minimal noise. No need for mortising—easy to install without cutting or chiseling, reducing damage to the door and preserving its appearance. Constructed from high-density steel for increased strength, durability, and load-bearing capacity. Features a 3mm thick hinge blade and reinforced bearing for superior strength, toughness, and performance. Product size: 4 inches x 2.5 inches Product color: Silver Quantity: 2 pieces