FIG. 1 is a plan view of my brush for nails design; FIG. 2 is a front elevational view thereof; FIG. 3 is a rear elevational view thereof; FIG. 4 is a bottom view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a sectional view taken along line VII—VII of FIG. 1; FIG. 8 is a sectional view taken along line VIII—VIII of FIG. 2; and, FIG. 9 is a perspective view thereof.