12 inch Clear Acrylic T Square Ruler - 1 piece per set; length 11.8 inch; overall size 13.8 x 6.7 inch - Note: please remove the protective films on both sides of the ruler before use Durability and construction - Laser-cut edge for a cleaner, longer lasting cut - Made of high quality clear acrylic to withstand a variety of craft supplies and materials - Translucent color allows a clear view of numbers and letters on the page - Smooth, anti-glare surface for comfortable measuring Easy to use and versatile - Clear and easy to read; numbers and letters are crystal clear - Double-sided measuring ruler in cm and inches; portable and practical - Two units available (cm and inches) to meet different requirements - Underlined notes help you draw columns or check layouts on your papers - Calibrations in both inches and centimeters enable flexible use in most situations Quality and durability - Constructed from durable clear acrylic for long service life - Smooth feel, comfortable grip, and resistance to routine wear and damage - A reliable measuring tool for a wide range of tasks and environments Practical use scenarios - Drafting and architectural planning: align lines and measure components with precision - Sewing, tailoring, and quilting: ensure pattern pieces and seams are accurate - Arts, crafts, scrapbooking, and classroom projects: layout pages, columns, and measurements with ease