A housing for a member disposed at a vehicle exterior is formed by assembling a plurality of parts substantially in a vehicle longitudinal direction. The pendulum includes a first portion which rotates on the support and a second portion which travels in a arcuate path. When the rod is pushed into the handle part to enter an entry portion of the umbrella and reach a completely locked-in condition, the mark is labeled noticeably on the rod, and at least one distal portion of the handle part is made of a suitable elastic material such as polyurethane. A pump-off sub configured to release a downhole mill includes a dovetail connection maintained by a c-ring in an expanded state. In this state, the butted portion is joined by the friction agitation joining method.