Set of bristles for a toothbrush
FIG. 1 is a top plan view of a set of bristles for a toothbrush showing our new design; 
     FIG. 2 is a right side elevational view thereof; 
     FIG. 3 is an elevational view as seen from the left end of FIG. 1; 
     FIG. 4 is a right end elevational view thereof; 
     FIG. 5 is a left side elevational view thereof; 
     FIG. 6 is a perspective view thereof; 
     FIG. 7 is a top plan view of a second embodiment of the design shown in FIG. 1; 
     FIG. 8 is a right side elevational view thereof; 
     FIG. 9 is an elevational view as seen from the left end of FIG. 7; 
     FIG. 10 is a right end elevational view thereof; 
     FIG. 11 is a left side elevational view thereof; and, 
     FIG. 12 is a perspective view thereof. 
     The structure shown in phantom or broken lines in the Figures forms no part of the claimed design and is present only to illustrate the environment.