… reflective plates spiralled up in long plastic tubes. Octahedral reflectors are intermateable corner reflectors and can be stored in a space-saving manner. Blipper or Echomax reflectors, on the other hand, have a cylindrical case of strong PE plastic in white or unobtrusive brown. A special feature for racing yachts, life rafts and rescue boats are lightweight inflatable radar reflectors. Active radar reflectors amplify and retransmit radar signals through a transmitter antenna. This significantly improves radar visibility and safety of small vessels.