Different women bra extender: ① 2 Hook 3 row(LW): 9.8 x 3.2 cm, 0.5 Inch Spacing. ② 3 Hook 3 row (LW): 10x 5.7 cm, 0.75 Inch Spacing. ③ 3 Hook 4 row (LW): 10x 7.6 cm, 0.75 Inch Spacing.