Size 16 11.5cm inner length
Size 17, 12cm inner length
Size 18 12.5cm inner length
Size 19, 13cm inner length
Size 20 13.5cm inner length
Size 22 14cm inner length
Size 23 14.5cm inner length
Size 24 15cm inner length
Size 25 15.5cm inner length
Size 26, 16cm inner length
Size 27 16.5cm inner length
Size 28 17cm inner length
Size 29 17.5cm inner length
Size 30 18cm inner length
Size 31 18.5cm inner length
