Premium Quality - Carbon Steel, Satin Finish, Rust and Corrosion Resistant, Durable; This barn door floor rail is perfect for all styles of barn door hardware;Unique Design - Polished smooth chamfered edges won't damage other objects, brackets and screws lie flat on the floor, and internal ball bearings ensure quiet operation that won't disturb your leisure time. Easy to Install - Two assembly configuration options, adjust the roller position to fit your door panel Say don't damage your floor, this barn door floor rail is wall mounted; and you can easily wrench your door depending on your door thickness Adjust the scroll wheel;Package: 1 x Floor Rail, 2 x Mounting Screws, 2 x Wall Anchor, 1x Wrench;Adjustable width: 0-66MM adjustable, bearing suitable for various designsThe JCSW team is at your service and we hope you enjoy your life