The Large 2-Sided Metric Ruler measuring tool is intended to serve multiple frame-of-reference applications, and designed with a different reading style on each side. On one side is a 30cm left to right reading ruler, and when you flip it to the other side it becomes a 30cm long vertical up reading ruler, and both sides start with a true zero edge. These are designed to complement and work beside the large 2-Sided Folding Rulers.
These rules are constructed of a semi-rigid plastic approximately 1/16” thick, 1 1/2” wide, and designed with large enough numbers to be seen from great distances. The bold black and yellow graphics are used to create contrast for optimum viewing in both photographs and in the field.
These tools are incredibly durable and portable. The Large 2-Sided Rulers are rustproof and waterproof, and each of these rules is top coated for a true non-glare photographic surface, which also adds extra chemical protection.