Ruler offers accurate raised, sharply defined Imperial ruling with 1/16" markings and metric calibrations. Ruler is made of rigid, lightweight, strong plastic. Design features a pencil groove and holes in center for storing in two-ring or three-ring binders.
Holes for binders
Sparco SPR 01488 12 Standard Metric Ruler - 12 Length 1.3 Width - 1/16 Graduations - Metric, Imperial Measuring System -