Five Oceans Echomaster Radar Reflectors, 12" x 12" FO-2316 A GREAT backup aboard larger boats or primary reflector on smaller vessels that might not normally carry a radar reflector THIS RADAR REFLECTOR is compact, lightweight, and can be quickly assembled or disassembled MADE from Aluminum to resist the marine environment SUITABLE for Sailboats and Powerboats THREE (3) perpendicular aluminum planes reflect radar in all directions