Uniball eraser dimensions:
SIZE A = Diameter 4.5 mm SIZE B = Diameter 4.0 mm SIZE C = Diameter 3.4 mm SIZE G = Diameter 3.7 mm SIZE H = Diameter 5.5 mm SIZE J = Diameter 4.0 mm SIZE L = Diameter 6.8 mm SIZE N = Diameter 6.7 mm SIZE S = Diameter 4.6 mm