Abstract: A fence slat or pickett for interweaving in a vertical orientation in mesh of a chain link fence where diamond shaped openings extend vertically. The slats have a width slightly less than half the breadth of the opening so as to clear bends of strands at the corners of the diamond shaped openings. Longitudinal side portions of the slats each have a strand receiving notch spaced from the end of the slat a distance less than the breadth of the slat and the slat is anchored to the mesh by bending either the left or right side corner over the strand of the topmost opening.