1. 12 inch Clear Acrylic T Square Ruler 1pcs/set with the length is 11.8 inch, overall size of ruler: 13.8 x 6.7 inch (Note: please remove the protective films on both sides of the ruler before use) 2. Durability You Can Trust 12 inch clear acrylic ruler with a laser cut for a cleaner edge and made of high quality acrylic to withstand a variety of craft supplies and materials. Translucent color allows a clear view of numbers and letters on the page; With the clear math ruler, you can easily measure an object, smooth, antiglare surface is easy to use. 3. EASY TO USE Our ruler is clear and easy to read. The numbers and letters are crystal clear. Doublesided measuring ruler in cm and inches, portable and practical. Precise measurement. 2 types of units (cm and inches), meet your different requirements. You can see the underlined notes, convenient for you to draw columns or check the layout of your papers. This ruler has inch and centimeter calibrations that allow for flexible use in most situations 4. Material The acrylic ruler is made of high quality acrylic, which are good measuring tools, easy and convenient to use. sturdy clear acrylic, smooth feel and comfortable, soft and not easy to break and damage, long life, is a good helper in your life measurement