Prime-Line Products N 6508 Closet Door Roller, Front, 1/4-Inch Offset, 3/4-Inch Nylon Wheel,(Pack of 2) Single wheel Side mounting 1/4in. Offset adjustable bracket for front door 3/4in. O.D. round edge nylon wheel Fits 3/4in. to 1-3/8in. thick by-passing doors up to 50 lbs. each