DescriptionThese floor guide set ensure a high level performance for your sliding barn door. The two point screw slots provide a secure lock to prevent the door from swinging to the sides. Before install, measure your door height, door trim(if available) and bottom groove, leave appropriate gap for your floor guide height.Features- Color: Black. - Material: Plastic. - Size: 4.50 x 2.50 x 2.00cm/ 1.77 x 0.98 x 0.79 inch. - Slimmer but heavy duty, hold on the track tightly very easy. - Innovative design makes no sounds when opening and closing doors, and minimize the impact for the whole system when operation. - You can slide the door stoppers at the ends of the rail easily. - But you should install the door stopper before installing the whole set if you make it for double doors. - Perfectly work with all rolling door kits, durable and reliable performance.