To make a hinge protecting rib unnecessary, make a size small, and easily fit to a counter stacked connector housing by cutting out a hinge after stacking.

A pair of connector housings 33, 35 are connected with a flexible band 37. The housings 33, 35 are formed in a stacked connector housing 31 by bending the band 37. Bosses 47 are formed in the housing 33 and engaging holes 49 for engaging with the bosses 47 are formed in the housing 35. Fitting holes 51, 53, terminal housing chambers 55, 57, for fitting to the counter connector housing are formed, and openings 59, 61 are formed. The housings 33, 35 are stacked and connected, then the band 37 is cut except for the base part to form the housing 31. A rib projecting to the outside than the band 37, for protecting the band 37 is made unnecessary, the width of the housing 31 is made narrow, and the housing 31 is made small.