Straight Tri-Fold 90cm Scale ruler Blank faces provide flexibility for

Blank faces provide flexibility for creating an endless variety of number or letter sequences to mark large quantities of evidence

Powered by a single 9 volt battery

Power Packs can be swapped out in seconds with no tools

Printed in black on 110 lb card stock

Individually boxed

Straight Tri-Fold 90cm Scale ruler Blank faces provide flexibility forTri Fold scales can be configured in three different modes: straight, right angle and dual right angle. The EFR300 measures units in centimeters and is 90cm long when fully extended, 30cm x 60cm as a right angle and 30cm x 30 cm as a dual right angle. Scales are manufactured of . 040" thick yellow polystyrene 1 1 2" wide) with black divisions and are printed on both sides to permit horizontal or vertical measurements with a 1 4" hole for hanging if