Heavy Duty Sturdy Sliding Barn Door Hardware Kit, Suitable For Double Wooden Door Middle Wheel Shape Sliding Door Rail ,Superior Strength

Carbon Steel Roller - Super load-bearing capacity, inner nylon wheels, will not wear the track when rolling. Adjustable Screw - The roller screws can be adjusted freely in any size within the door thickness from 1 3/16" to 2". Anti-jumpers - The little round discs won?t allow your door to be lifted off the rail. Door stoppers - spring design: Spring door stoppers plays a buffer role, reducing the noise of the collision when opening and closing the door. Wooden : Insert wood in the hole, the hole diameter won?t enlarge, which stabilizes the nail into the wall, keeps whole system runs stable.