Powder Coated Bottom Guide Stay Roller for Barn Door Hardware Steel 100% DURABLE - Made from 100% steel, Powder Coated Black Finish,Screws to match for ultimate durability. Smooth and Quiet Roll COMPATIBLE - Can be used with doors that are up to 2 1/4" Thick. Works with all brands of barn door hardware. Adjustable Wall Mounted Stay Roller EASY INSTALLATION - Attach 2 screws into baseboard and tighten guide in place.