FIG. 1 is a top, front, and right side perspective view of the back scrubber, showing my new design;
FIG. 2 is a bottom, rear, and left side perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is an enlarged view of a portion labeled 9 in FIG. 1;
FIG. 10 is an enlarged view of a portion labeled 10 in FIG. 1;
FIG. 11 is an enlarged view of a portion labeled 11 in FIG. 1;
FIG. 12 is an enlarged view of a portion labeled 12 in FIG. 1;
FIG. 13 is an enlarged view of a portion labeled 13 in FIG. 1;
FIG. 14 is an enlarged view of a portion labeled 14 in FIG. 3;
FIG. 15 is an enlarged view of a portion labeled 15 in FIG. 3;
FIG. 16 is an enlarged view of a portion labeled 16 in FIG. 3;
FIG. 17 is an enlarged view of a portion labeled 17 in FIG. 3;
FIG. 18 is an enlarged view of a portion labeled 18 in FIG. 3;
FIG. 19 is an enlarged view of a portion labeled 19 in FIG. 5;
FIG. 20 is an enlarged view of a portion labeled 20 in FIG. 5;
FIG. 21 is an enlarged view of a portion labeled 21 in FIG. 5;
FIG. 22 is an enlarged view of a portion labeled 22 in FIG. 5;
FIG. 23 is an enlarged view of a portion labeled 23 in FIG. 6;
FIG. 24 is an enlarged view of a portion labeled 24 in FIG. 6;
FIG. 25 is an enlarged view of a portion labeled 25 in FIG. 6;
FIG. 26 is an enlarged view of a portion labeled 26 in FIG. 6;
FIG. 27 is an enlarged view of a portion labeled 27 in FIG. 7;
FIG. 28 is an enlarged view of a portion labeled 28 in FIG. 7;
FIG. 29 is an enlarged view of a portion labeled 29 in FIG. 7;
FIG. 30 is an enlarged view of a portion labeled 30 in FIG. 8;
FIG. 31 is an enlarged view of a portion labeled 31 in FIG. 8; and,
FIG. 32 is an enlarged view of a portion labeled 32 in FIG. 8.
The dash dot dash lines in FIG. 1, FIG. 3, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG. 15, FIG. 16, FIG. 17, FIG. 18, FIG. 19, FIG. 20, FIG. 21, FIG. 22, FIG. 23, FIG. 24, FIG. 25, FIG. 26, FIG. 27, FIG. 28, FIG. 29, FIG. 30, FIG. 31 and FIG. 32 define the enlarged views and form no part of the claim.