Housing and vehicle

A vehicle comprising:

• a housing attached to a vehicle main body, wherein
• the housing includes:
• an outer box component including:
• an outer wall portion that is loop shaped;
• and an outer surface portion that covers one end surface of the outer wall portion,
• the outer wall portion including:
• a first wall portion;
• and a second wall portion that is disposed at a surface of the outer wall portion that intersects the first wall portion, the second wall portion being contiguous with the first wall portion;
• an inner box component including:
• an inner wall portion that is disposed inward of the outer wall portion and is loop shaped;
• and an inner surface portion that covers one end surface of the inner wall portion,
• the inner wall portion including:
• a third wall portion that is disposed to face the first wall portion;
• and a fourth wall portion that is disposed to face the second wall portion;
• an outer fitting portion that is provided to the first wall portion;
• an inner fitting portion that is provided to the third wall portion and engages, by a snap-fit, with the outer fitting portion in a fitting direction, the fitting direction being a direction in which the outer box component and the inner box component are fitted together;
• an outer engaging portion that is provided to the second wall portion;
• and
• an inner engaging portion that is provided to the fourth wall portion and that, in a first direction in which the first wall portion and the third wall portion are aligned with each other:
• is unengaged with the outer engaging portion during a process of fitting the outer box component and the inner box component together;
• and
• when the outer fitting portion and the inner fitting portion are engaged with each other, engages with the outer engaging portion in a direction in which the outer fitting portion and the inner fitting portion move away from each other.