High Quality - Made of high quality tough birch with environmentally friendly coating, this rule is durable, stable, wear resistant for long time use. The brass joints, endcaps, and sliding rule are extremely durable. Measurement diversity - You can easily operate it by a single hand in restricted areas. The folding design also helps you to measure without a ladder. perfect for measuring the depth of holes, squaring boxes, and a wide range of other things. Double Measurements - Regardless of the system of measurement you're using, this collapsible ruler stick will work for your project. The metric side is on the inside of the folded ruler and the imperial side is on the outside. Widely Usage - It can widely be used for carpenters, underwater measuring, and etc. You can also use it at home, office, workshop. Compact Design - When folded, our fold out yard stick measures roughly 9.5" x 1.5" x .6" and fits easily in carpenter pants. When extended, it reaches 6.5 ft (2 meters). Jeemiter 2 Pack Wood Folding Rule, 6.5FT 2M Foldable Ruler with Inch and Metric Measurements for Lineman Carpenter Electrician Engineers