Fiskars® Sewing Ruler is perfectly sized for a variety of crafting, sewing and quilting projects. This clear ruler features two-toned measurements for visibility on light and dark material, incremental grid lines, and 30, 45 and 60-degree bias line indicators.Details:3"" x 18""3 mm thickClear acrylicAccurate 1"" and 1/4"" markingsEasy-to-read measurementsNon-slippery for extra tractionFull lifetime warranty