✦ Il Portale ha risposto ✦

Size US HK CIRCUMFERENCE INTERNAL DIAMETER
3 3 6 44.3 14.1
4 4 8 47 14.9
5 5 10 49.3 15.7
6 6 13 51.8 16.5
7 7 15 54.4 17.3
8 8 18 56.9 18.1
9 9 20 59.5 18.9
10 10 22 62.1 19.8
11 11 25 64.6 20.6
12 12 27 67.2 21.4
13 13 29 70 22.3