ROLLER, CONCAVE (1-3/16OD) Product Code: HWD-01008Price: Check LatestRoller Zinc Plated Steel A: 1-3/16 (3cm) B: 5/16 (.8cm) C: 3/8 (.9cm) D: 1/4 (.6cm) Hole is countersunk for 1/4 flat head machine screw