Plastic bag zipper closer

A device useful in closing a zipper on a plastic bag, the device comprising:

• (a) an elongate hollow body having one or more sidewalls, a first end, a second end, a longitudinal axis and an end wall disposed perpendicular to the longitudinal axis at the second end of the body;
• (b) a linear sidewall slit defined within the one or more sidewalls, the sidewall slit being disposed parallel to the longitudinal axis of the body and running along the entire length of the body between the first end and the second end;
• and
• (c) a closer element disposed within the body, the closer element comprising a pair of opposed biased surfaces disposed proximate to one another to form a trough, the opposed pair of biased surfaces being disposed with respect to one another by an angle between about 15° and about 30°, the pair of biased surfaces being spaced apart at the base of the trough by a closer element slit, the closer element slit having a length between about 0.75 inches and about one inch and a width between about 0.06 inches and about 0.08 inches, the closer element slit being disposed perpendicular to the longitudinal axis of the body and in communication with the sidewall slit such that the intersection of the closer element slit and the sidewall slit forms an L-shaped combined slit.