FEATURES - Get rid of creaky doors with this ball bearing door hinge. High quality design allows the door to open and close effortlessly and quietly. USAGE - Ideal for both interior and exterior commercial door applications. SPECIFICATIONS - 4.5” square. Durable construction and weather resistant. Has a 3-hour UL fire rating. INSTALLATION - Template drilled holes for easy installation. Reversible for left or right-handed doors. QUALITY YOU CAN TRUST - A global leader in security-related products and services, the Brink's name is synonymous with top quality products to keep you and your belongings safe.