The spacers can very well work with tracks for barn doors. Using high-carbon steel materials, they are sturdy and durable, anti-scratch. Detailed workmanship, ensuring durability and dependability.It has proper size and reasonable structure, can be widely used in sliding barn door. Features - Color: black. - Material:high-carbon steel. - Size:3.50X3.00X3.00cm/1.38X1.18X1.18inch. -Mount the spacer between the track and wall, these spacers can offer a durable and reliable support - Detailed workmanship, do not easy to get rust, being sturdy and durable, you can use rest assured. - Widely applied for sliding barn door, garage door, basement door, and hardwares track replacement accessories. -It has proper size and reasonable structure, can be better applied to connect rails and walls. - It is of strong strength and long durability, can be used to connect the track and wall, leaving enough space between them. Package list: 5 x barn door spacers