Guardian Fall Protection 00125 Beamer BBC 18-2.5 Fall Arrest System- Fits 8-Inch to 18-Inch Beams Up to 2-Inch Thick Fits 8-Inch to 18-Inch beam widths Fits up to 2.5-Inch thick flange For use on top or bottom flange of an I or H beam Will accommodate a retractable when used on the bottom of an overhead beam A Guardian Fall Product