ROLLER(1OD,1/4-20 NYLON TIRE) Product Code: HWD-01024Price: Check LatestRoller - Steel with Nylon Tire A: 1 (2.5cm) B: 7/32 (.5cm) C: 3/8 (.9cm) D: 3/8 (.9cm) 1/4-20 threaded removable stud