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Size Chart BiionUK/India US Europe length (cm)
2 4 35 22.0
3 5 36 22.7
4 6 37 23.3
5 7 38 24.0
6 8 39 24.7
7 9 40 25.3
8 10 41 26.0
9 11 42 26.7
10 12 43 27.3