A housing of a wire harness includes a first member and a second member that store therein an object to be stored; a locking mechanism that locks the first member and the second member, when a first locking surface and a second locking surface are locked to each other in a first direction; and a stabilizer mechanism that includes a fitting surface projecting from the first member to outside, and a biasing part that projects from the second member to the outside, that is elastically and deformably provided along the first direction, that is elastically deformed by coming into contact with the fitting surface while the first member and the second member are locked by the locking mechanism, and that generates biasing force for pressing the second locking surface toward the first locking surface side along the first direction.