MAYDAY SIGNALLING MIRROR-HELIOGRAPH SIZE 4"
This innovative mirror is lightweight. Robust and approved for marine and military use.
Highly reflective giving it a range of well over 10 miles, for the 4" liferaft/lifeboat larger mirror.
Designed for one handed operation.
Accurate and effective
Quick and easy to use
Instructions printed on reverse side
NATO approved: NSN-6350-99-613-9818 c/w Type approved logo and Approved Lanyard.