All of the PS-XO series of Calibration Slides is Green Float Glass, Bright Chrome Image
High definition 150 mm scale in 0.1 mm divisions with extended 0.5 mm, 1.0 mm and 5.0 mm lines to allow calibrations in those increments too. Series of dots and crosses, at 10 mm intervals, included for calibrations where these shapes are preferred. Supplied in polished wooden case.
150 mm high definition scale in 0.1 mm divisions with additional dot and cross series at 10 mm centers