5Pc Brass Wire Wheel Set Metalsmith Polishing Brushes 1 Brass wheel that measures approximately 3" (76 mm) in diameter 1 Brass wheel that measures approximately 2 1/2" (63.5 mm) in diameter 1 Brass wheel that measures approximately 2" (51 mm) in diameter 1 Brass wheel that measures approximately 1 1/2" (38 mm) in diameter 1 Brass wheel that measures approximately 1" (25.5 mm) in diameter