Slide-Co 16210-F Closet Door Roller, Front, 1/4-Inch Offset, 1-Inch Nylon Wheel,(Pack of 2) Single wheel Pack consists of 2 rollers and 4 screws 1/4in. Offset adjustable bracket for front door 1in. O.D. Convex edged nylon wheel Fits 3/4in. to 1-3/8in. thick doors Fits Cox top hung doors