These unit measuring scales may be used directly under a microscope or magnifier for quick measuring of small specimens, parts, grooves, slots, line widths, holes, chambers, etc. Precision fabricated from stainless steel, the scales are welded to bendable stainless steel shafts and mounted in color coded, non-rolling handles. Each scale is individually packed in a plastic tube. Overall length of the scale is 83 mm (3¼"), including handle.