Miller Shadow Beam Anchor* Adjustable Anchor The Shadow Beam Anchor adjusts to fit securely on beams with flange sizes between 4 in. and 12 in. * Reusable The Miller Shadow Anchor is a temporary anchor that can be taken from one job site to the next. Now you won't have to shell out more cash for every new project. * Durable Construction This sliding beam anchor is built with durable components including stainless steel, aluminum, and drop forged steel. This thing is tough. *