KnitPro Symfonie Rundpinde Birk 50cm 2,50mm / 19.7in US1½

2 mm / US 0

2,25 mm / US 1

2,50 mm / US 1½

2,75 mm / US 2

3 mm / US 2½

3,25 mm / US 3

3,50 mm / US 4

3,75 mm / US 5

4 mm / US 6

4,50 mm / US 7

5 mm / US 8

5,5 mm / US 9

6 mm / US 10

6,5 mm / US 10½

7 mm / US 10¾

8 mm / US 11

9 mm / US 13

10 mm / US 15

12 mm / US 17