Description These floor guide stop ensure high level performance for your sliding door and barn door. The floor guide swing stop can be used to prevent the door from swinging to the sides. Before install, measure your door height, door trim(if available) and bottom groove, leave appropriate gaps for your floor guide height. Features - Color: Black.- Material:Carbon steel.- Size:9.50X4.40X3.50cm/3.73X1.73X1.38inch.- Door floor guide, prevent your door from rolling off the rail, anti-collision, ensure quiet close.- Work for non-grooved and grooved doors. Fully adjustable, suitable for all thickness sliding door and barn doors.- The floor guide can prevent the door from swing, allow you to open and close your door freely.- This door floor guide swing stop is going to be installed on the floor to ensure the door stays in-line with the rail above.- It is simple in design, but it's practical to use, which will give you fantasticuse experience.Packing list: 1 x Barn Door Floor Guide2 x Screws2 x Expansion Tubes1 x L-shape Wrench