Features:*Made of carbon steel material, with good power and powerful resistance.*Be used to stabilize barn door movement, stop door from swinging.*Fully adjustable surface guides that may be used with maximum door thick.*Provides silent and effortless sliding, will not disturb you and your family.Specifications:Material: Carbon SteelColor: BlackPackage Contents: 1 Pcs x Barn Door Guides2 Pcs x Screws2 Pcs x Expansion screwsNote:1. The real shade of the item may be slightly varied from the images shown on online page caused by many factors such as brightness of your computer screen and light brightness.2. Please enable slight manual measurement deviation for the data.