Description Designed for smooth and efficient operation of sliding doors. Its robust construction ensures durability and long-lasting performance. Ideal for greenhouses, barn doors, and other sliding door applications, this pulley system provides a reliable solution for easy door movement and secure positioning. Features -Color:Silver -Material:Steel -Size:6.00X5.00X3.00cm/2.36X1.97X1.18in -Easy installation: simplifies the setup process, enhancing work efficiency. ideal for use in factories, warehouses, and other industrial settings -Material: designed for longterm use, ensuring eliability of the product -Precision control: equipped with a stopper to accurately control the door's opening and closing positions, preventing mishandling and damage -Smooth and quiet: the track design ensures smooth operation with no noise, maintaining a quiet indoor environment and providing a comfortable workspace -Versatile application: suitable for courtyard glass sliding doors, as well as various wooden, aluminum alloy, and sliding doors in different settingsPackage list: 1 x Trolley Roller Wheel Limit