Protecta Concrete D-Ring Bolt Anchor* This anchor has been designed for temporary or permanent use in concrete, and can be installed in vertical walls, floor mount, or overhead applications. * The d ring assembly on this anchor is re usable, just install a new bolt assembly (Sold Separately), and it's ready to use again. * This concrete bolt anchor is designed to last in harsh work environments and is constructed without moving or fragile components. * You'll only need standard drill