Premium Materials: The sliding barn door handles are made of carbon steel with a corrosion-resistant black powder coat finish for durability. Retro Style: Invisible handle, comfortable and soft to hold; matte surface does not leave fingerprints. Handle size: 30cm Suitable for door panels between (35~45mm) MULTI-PURPOSE: This handle of door can be used for home or commercial use, suitable for sliding barn doors, cabinet doors, sheds, wine cellars, etc.