An adapter plug including a central rectangular body having integral loop handles extending laterally from the opposed sides thereof and defining finger accommodating grips to assist in inserting and removing the adapter from a power source, wall receptacle or the like. Conductor prongs extend from one end of the adapter plug body for engagement within a wall receptacle while the other end of the adapter body includes conductive sockets for the semi-permanent mounting of an appliance plug thereto.

A reel is composed of a base having therein a recess, a seat formed on a bottom face defining the recess so as to position a rotation disk thereon, an opening defined in a side face defining the recess to communicate with the recess and for oppositely receiving two rollers, and a gap defined to communicate with the opening. The rotation disk has a first disk and a second disk securely connected to the first disk by means of a connection shaft. The second disk has an indent defined in a mediate portion thereof and a channel defined to communicate with both the indent and the opening of the base. The connector of the hose is able to be received in the indent and the hose is able to be wound around the connection shaft.

A retractable rule assembly includes wear resistant structure formed of a wear resistant material. The wear resistant structure is mounted at each lateral side of a blade opening of the rule assembly's housing to substantially protect the plastics material at the lateral sides from wear by the lateral side edges of the blade. An alternative retractable rule assembly has rollers rotatably mounted at each lateral side of the blade opening.