Johnson Hardware Adjustable Bypass Door Guide is designed to fit doors with thicknesses ranging from 3/4" to 1-3/8". This adjustable guide allows for easy width modifications by simply turning the outside guides, ensuring a fit. The slots in the plate help key the door face adjustment plumb for smooth operation. Constructed with a durable brown finish steel base and nylon posts, this door guide both strength and reliability. Installation is straightforward with the included screws, and the product comes backed by a lifetime warranty for lasting peace of mind. Model Number: 2135PPK1