Using these Deltana ball bearing hinges is easy. First, make sure the door and frame are clean and dry. Align the hinge on the door and frame, then use the #12 x 1 - 1/4 wood screws to secure it tightly. When opening and closing the door, you'll notice the smooth movement thanks to the ball bearings. For maintenance, clean the hinges regularly with a soft cloth. You can use a mild cleaner if there's dirt or grime, but avoid abrasive materials that could scratch the finish. Check the screws periodically to ensure they're tight. If you're in a humid area, you might want to apply a light coat of lubricant to the ball bearings once in a while to keep them working smoothly. Keep these tips in mind, and your hinges will serve you well for a long time.