Gauge markers, 3 black diamonds on white background, 50 pieces, TRVIEWX

GAUGE MARKERS, 3 BLACK DIAMONDS ON WHITE BACKGROUND, 50 PIECES, TRVIEWX. 3 black diamonds on a white background gauge markers for TRViewX non-contact video extensometers and width sensors. These gauge markers are suitable for use with flat light plastic and flat light metal specimens, have a temperature range of -20 to 150?C, and include 50 pieces..