1 Set of Guide Block Roller Door Courtyard Door Guide Wheel Frame White Zinc Roller 30x40mm for Sliding Door Factory Door

The position of the door roller can be adjusted according to the width of the door frame, and the guide rail of the door roller is composed of bearings and white zinc, which better reduces friction and noise, making your sliding door smoother and quieter. White zinc is an anti-corrosion treatment that prevents rust and corrosion by coating the metal surface with a layer of zinc. This treatment can make the product more durable, especially in outdoor environments. The universal L-rail mounting bracket is suitable for all types of sliding doors and can be mounted up or down depending on your specific assembly needs. It offers versatile compatibility for a variety of sliding door configurations. With high bending strength, it ensures a firm hold to your automatic sliding door or manual sliding door. Suitable for sliding doors/electric doors/garage/factory doors, etc.