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