A NARROW VERTICAL STANDING RECTANGLE, FOLLOWED BY A SMALL SPACE AND THREE SEPARATED HORIZONTAL BLOCKS. THE TOP AND BOTTOM HORIZONTAL BLOCKS ARE TAPERED ON ONE SIDE FACING OUT. THE MIDDLE BLOCK IS SEPARATED ON BOTH SIDES FROM THE TOP AND BOTTOM RECTANGLES BY A SMALL SPACE AND IS OPEN ON THE LEFT END, FOLLOWED BY A SMALL SQUARE AND BALL, THEN A HORIZONTAL BAR IN THE MIDDLE, WITH CORRESPONDING BALL AND SMALL SQUARE ON THE OTHER END, WITH NO OPENING ON THE RIGHT SIDE OF THE MIDDLE HORIZONTAL RECTANGLE. THE LITERAL ELEMENT "SHOCK FUSE" FOLLOWS THE PROCEEDING GRAPHIC REPRESENTATION OF THE PRODUCT TO THE RIGHT, SEPARATE BY A SMALL SPACE, ON THE SAME PLANE WITH THE TWO WORDS IN CAPITAL LETTERS.