Hook Attachment

FIG. 1 is a perspective view of a hook attachment showing our new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a right-side elevational view thereof, the left-side elevational view being a mirror image of the right-side elevational view;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures show portions of the hook attachment that form no part of the claimed design.