This unit is excellent for towing your tender to help avoid another vessel crossing your tow line or crashing into the tow. Also ideal for sword fishing to help freighters spot you. The solid billet butt idealy would go into the rod holder on a T-top. The reflector is made from stamped aluminum sheets with locking corner rivets. Its three perpendicular planes reflect radar from all directions. Echomaster radar reflectors return the same signal as reflectors costing hundreds of dollars more.