| Tamanho (Aro) | Diâmetro Interno (cm) | Diâmetro Interno (mm) |
| 6 | 1,36 cm | 13,6 mm |
| 7 | 1,40 cm | 14,0 mm |
| 8 | 1,43 cm | 14,3 mm |
| 9 | 1,46 cm | 14,6 mm |
| 10 | 1,50 cm | 15,0 mm |
| 11 | 1,53 cm | 15,3 mm |
| 12 | 1,56 cm | 15,6 mm |
| 13 | 1,60 cm | 16,0 mm |
| 14 | 1,64 cm | 16,4 mm |
| 15 | 1,67 cm | 16,7 mm |
| 16 | 1,70 cm | 17,0 mm |
| 17 | 1,74 cm | 17,4 mm |
| 18 | 1,77 cm | 17,7 mm |
| 19 | 1,81 cm | 18,1 mm |
| 20 | 1,84 cm | 18,4 mm |
| 21 | 1,87 cm | 18,7 mm |
| 22 | 1,90 cm | 19,0 mm |
| 23 | 1,94 cm | 19,4 mm |
| 24 | 1,97 cm | 19,7 mm |
| 25 | 2,00 cm | 20,0 mm |