Plastic bag
FIG. 1 is a front perspective view of a plastic  bag showing my new design; 
     FIG. 2 is a rear perspective view thereof; 
     FIG. 3 is a bottom plan view thereof; 
     FIG. 4 is a front perspective view of a  modified form of my new design; 
     FIG. 5 is a rear perspective view of the form  shown in FIG. 4; and 
     FIG. 6 is a bottom plan view of the form shown in FIG. 4.