Size Class

Area Cover (cm²)

Approx Radius (cm)

SC1

<4

<1

SC2

4 - 12

2

SC3

12 - 30

3

SC4

30 - 50

4

SC5

50 - 75

5

SC6

75 - 100

6

SC7

100 - 150

7

SC8

>150

>8