The Wallboard Anchor is a one piece self-drilling anchor designed for use in hollow gypsum wallboard for light to medium duty loads. It is ideal for mounting electrical fixtures, fastening drapery supports, installing phone systems and miscellaneous hardware. Nylon drywall anchors feature a shark's-tooth design to provide correct positioning and quick installation. Includes screws. Use in wallboard, tile, and masonry. For interior and exterior use. 7 sizes in kit.