【High Materials Craftsmanship】The door guide is made of hardened carbon steel with black coating, it is of high strength and long durability, Comes with installation hardware, so it is easy to adjust and install, safe to use for a long time 【Fully Adjustable】All configuration options are easily adjustable to ensure a perfect fit. No matter what size or type of barn door you have, we guarantee this floor guide will provide a secure fit 【Smooth Glide】 The rotating wheel perpendicular to the side makes not only smoother and quieter sliding, but also save more space. Flush bottom design will not damage your beautiful floor 【Unique Design】Adjustable zigzag design, firm, lightweight and concealed fixing, suitable for indoors and outdoors, and can be perfectly matched with different styles of barn doors. To maintain balance, a reliable door roller guide to prevent doors from swinging or scratching the interior wall 【Easy to Install】 There is no need to reserve grooves on the door or drill