31 yards/inner length 18.6cm

21 yards/inner length 13cm

26 yards/inner length 15.3cm

32 yards/inner length 19.5cm

22 yards/inner length 13.5cm

27 yards/inner length 16.2cm

33 yards/inner length 20cm

23 yards/inner length 14cm

28 yards/inner length 17cm

34 yards/inner length 20.6cm

24 yards/inner length 14.5cm

29 yards/inner length 17.6cm

35 yards / 215cm inside

25 yards/inner length 15cm

30 yards/inner length 18cm

36 yards/inner length 22cm