Helix 30CM Shatter Resistant Clear Ruler

These rulers are transparent plastic allowing you to see what's underneath, adding to the accuracy and ease of use. The Helix ruler shows both metric and imperial measurements, up to 12 Inch / 30cm. Each ruler features a 10-hole configuration that fits the majority of ring binders and lever files. These rulers are made from shatter resistant material and are flexible. Each ruler includes a start here line on both ends, making these rulers perfect for home, school or office.