Product Description Enhance your sliding door system with this durable and efficient gear rack set, designed for smooth, quiet, and reliable automation. Key Features: Package Contents: Includes 2 nylon gear racks, each measuring approximately 3.3 ft (1 m) in length, for a total length of about 6.6 ft. Dimensions: 39.4 x 0.78 x 1.02 inches (L x W x H). Quality Material: Constructed from wearresistant, corrosionresistant nylon for longlasting performance. The material offers low noise operation, ensuring smooth movement of the sliding door and suitability for various environments. Optimized LoadBearing Design: Foureye rack structure increases load capacity and stability, preventing deformation over time and maintaining consistent door alignment. Reliable Automation: Designed for automatic sliding door mechanisms, allowing for hands opening and closing for improved convenience and accessibility. Installation Guidance: 1. Install the 4module track and nylon rack, ensuring precise alignment between the rack and track. 2. Attach the automatic door machine to one end of the track. 3. Connect the door machine to the controller and power supply. 4. Test the automatic opening and closing to confirm smooth operation. Practical Applications: Residential use for patio, balcony, or interior sliding doors, enabling easy operation for all household members. Commercial sites such as office entryways, retail shops, and warehouses for improved efficiency and customer experience. Industrial environments where heavy or frequently used sliding doors require stable, automated movement. This gear rack set combines durability, quiet performance, and compatibility with standard automatic sliding door systems, making it a reliable choice for a wide range of spaces.