Size 15, 12cm inner length
Size 16 12.5cm inner length
Size 17, 13cm inner length
Size 18 13.5cm inner length
Size 19, 14cm inner length
Size 21 14.1cm inner length
Size 22 14.5cm inner length
Size 23, 15cm inner length
Size 24 15.5cm inner length
Size 25 16cm inner length
