Voltage 12, Inner Diameter 18.00, No./brushes 2, Brush w/, Brush Length 25.50, Spring w/, Brush Gear Width 12.20, Outer Diameter 90.00, Remarks Neg. brushes. Brush set: HC-CARGO MASX25-264., Height 26.00, Brush Thickness 8.80, Brush Height 14.80