S. I. Howard is a specialist glass manufacturer based in Massachusetts. The signal from this clever device will be as clear as the flawless glass they have produced. There are two to choose from:
- Large: 12.5 x 7.6cm
- Small: 7.4 x 5.0cm
Both sizes are supplied with a neck cord and handy instructions printed on the non reflective side. Supplied to the military the NSN number is 6350002619772.
- Age Restriction: