The Cronex Ball Bearing Hinges Ball are engineered to provide smooth, reliable performance for residential and commercial doors. Made from high-quality brass, these hinges offer excellent durability and resistance to corrosion, ensuring long-lasting use. The built-in ball bearing mechanism reduces friction, allowing doors to open and close quietly and effortlessly even with frequent use. With a standard 4 x 4 inch size, they are ideal for supporting heavier interior or exterior doors while maintaining stability and strength. Supplied with fixing screws and packaged for convenience, Cronex ball bearing hinges deliver dependable operation and a professional finish for any door installation.