Double hook

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

FIG. 2 is a front view of the double hook of FIG. 1 ;

FIG. 3 is a rear view of the double hook of FIG. 1 ;

FIG. 4 is a side view of the double hook of FIG. 1 ;

FIG. 5 is a top view of the double hook of FIG. 1 ; and,

FIG. 6 is a bottom view of the double hook of FIG. 1 .

The components of the display shown in broken lines illustrate portions of the double hook that form no part of the claimed design.