Inner length:

22 yards long, 13.5cm 23 yards long, 14.2cm

24 yards long, 14.6cm 25 yards long, 15cm

26 yards long, 15.7cm 27 yards long, 16.3cm

28 yards long, 17cm 29 yards long, 17.7cm

30 yards long, 18.3cm 31 yards long, 19cm

32 yards long, 19.7cm 33 yards long, 20.3cm

34 yards long, 21cm 35 yards long, 21.8cm

36 yards long, 22.2cm