FIG. 1 is a top, front, perspective view of a hair roller, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a bottom, perspective view thereof;
FIG. 9 is a top, front, perspective view thereof, shown in an open position of use; and,
FIG. 10 is a top, rear, perspective view thereof, shown in a closed position of use.
The broken lines in the figures illustrate portions of the article which form no part of the claimed design.