Usage Tips:1.SOLID DESIGN: Our interior door hinges are reliable and feature durable single bearing construction to ensure smooth operation for long periods of time. 2.The seamless function of the bearing ensures easy opening and closing of the door, while the sturdy design ensures long-lasting durability. 3.Replacement Radiator Hinge Size: L 2.4" x W 1.3" with 1.6in between holes - Good Replacement -- Replacement Radiator Hinges are ideal for replacing radiators and fit into the holes, no need to drill holes. 4.Hinge center pivots include a dampening oil feature designed to reduce metal-to-metal friction and provide a quiet opening and closing experience. 5.MULTIFUNCTIONAL USE:These door hinges are suitable for a variety of decorative styles and rooms, perfect for offices, kitchens, bathrooms, bedrooms and more. They can also be used for furniture doors, suitable for outdoor buildings, such as garages and dog houses