Vibration proofing device

A vibration proofing device, comprising a first attaching member to be attached to a first bracket;

• a second attaching member to be attached to a second bracket;
• and an insulator interposed between the first attaching member and the second attaching member, and the vibration proofing device being disposed in an internal space of the second bracket,
• wherein the first attaching member is formed to have two side walls parallel to each other to face an inner face of the second bracket,
• wherein the first attaching member has a top plate, a bottom plate, the two side walls, and an attaching hole surrounded by the top plate, the bottom plate and the two side walls, and the first bracket is attached into the attaching hole in an attaching direction from one end portion toward the other end portion of the first attaching member,
• wherein the second attaching member is a tubular member having an opening extending in a direction intersecting with the attaching direction,
• wherein at least one of side edge portions of each side wall is disposed outside the opening of the second attaching member,
• wherein the top plate and the bottom plate are recessed along the attaching direction relative to the side edge portions, and
• wherein each side wall is provided on an outer face thereof with a stopper made of an elastic material.