Umbrawing Duster

408 81 x 0.004 = 1 64

0.004

1 547 73 x 0.001 = 1 55

0.001

655 73 x 0.001 = 65.573

0.001

1 20 x 0.3 = 36

0.3

7 x 0.247 = 1.729

0.247