Electric outlet shell

An electric outlet shell comprising:

• a) a flat surface having at least one side edge;
• b) a plurality of recesses in the flat surface, each recess having opposite lateral sides and opening outwardly from the at least one side edge, each recess having at least two first electric plug insertion slots;
• c) a track extending along a length of each lateral side;
• d) a sliding groove communicating with and extending at a right angle to each track;
• e) a plurality of insertion plates, each having at least two second electric plug insertion slots therethrough and two guide rods extending therefrom, each insertion plate slidably engaging the tracks on opposite lateral sides of one of the plurality of recesses such that the insertion plate is movable from a use position, in which the second electric plug insertion slots are aligned with the first electric plug insertion slots, thereby enabling an electric plug to engage the first electric plug insertion slots by passing through the second electric plug insertion slots, and in which the guide rods engage the sliding grooves, to a position removed from the flat surface by sliding outwardly from the at least one edge;
• and,
• f) indicia on a surface of each insertion plate, whereby the indicia on each insertion plate is different from the indicia on the others of the plurality of insertion plates.