CENTER SIZE:

10 x 8 MM 11 x 9 MM 12 x 10 MM 14 x 10 MM 16 x 12 MM 18 x 13 MM 20 x 15 MM 22 x 16 MM 25 x 18 MM 30 x 20 MM 4 x 3 MM 5 x 3 MM 6 x 4 MM 7 x 5 MM 8 x 6 MM 9 x 7 MM